diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7f4a35c..22a68b7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.15
+          go-version: 1.16
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v2
         with:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index bb79263..d55ca33 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -1,25 +1,24 @@
 name: lint
 on:
   push:
-    tags:
-      - v*
     branches:
       - master
   pull_request:
 jobs:
   golangci:
-    strategy:
-      matrix:
-        go-version: [1.15.x]
-        os: [ubuntu-latest]
     name: lint
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: ^1.16
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v2
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
           version: latest
+          # Optional: golangci-lint command line arguments.
+          args: --enable gosec
       - name: testing
         run: go test ./...
diff --git a/.github/workflows/vulns.yml b/.github/workflows/vulns.yml
index 3df4099..7f5b264 100644
--- a/.github/workflows/vulns.yml
+++ b/.github/workflows/vulns.yml
@@ -14,8 +14,10 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-go@v2
         with:
-          go-version: ^1.13
+          go-version: ^1.16
+      - name: install depm
+        run: go install github.com/spiegel-im-spiegel/depm@latest
       - name: WriteGoList
-        run: go list -json -m all > go.list
+        run: depm list --json > go.list
       - name: Nancy
         uses: sonatype-nexus-community/nancy-github-action@main
diff --git a/.gitignore b/.gitignore
index 6f23615..6ed1e94 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,4 @@
 # Other files and folders
 *.bak
 dist/
+.task/
diff --git a/.goreleaser.yml b/.goreleaser.yml
index 5c49bc1..08df0ca 100644
--- a/.goreleaser.yml
+++ b/.goreleaser.yml
@@ -20,7 +20,7 @@ builds:
   main: ./
   flags:
   - -trimpath
-  ldflags: -s -w -X github.com/spiegel-im-spiegel/books-data/facade.Version={{ .Version }}
+  ldflags: -s -w -X github.com/spiegel-im-spiegel/books-data/facade.Version=v{{ .Version }}
   binary: books-data
 
 archives:
@@ -43,6 +43,7 @@ archives:
   - LICENSE*
   - README*
   - template/*
+  - dependency.png
 
 changelog:
   sort: asc
diff --git a/README.md b/README.md
index 1951961..9872beb 100644
--- a/README.md
+++ b/README.md
@@ -5,10 +5,12 @@
 [![GitHub license](https://img.shields.io/badge/license-Apache%202-blue.svg)](https://raw.githubusercontent.com/spiegel-im-spiegel/books-data/master/LICENSE)
 [![GitHub release](https://img.shields.io/github/release/spiegel-im-spiegel/books-data.svg)](https://github.com/spiegel-im-spiegel/books-data/releases/latest)
 
-## Download and Build
+This package is required Go 1.16 or later.
+
+## Build and Install
 
 ```
-$ go get github.com/spiegel-im-spiegel/books-data@latest
+$ go install github.com/spiegel-im-spiegel/books-data@latest
 ```
 
 ### Binaries
@@ -403,6 +405,10 @@ $ books-data history -i 9784274069321 -t testdata/review-template/template.html
 </div>
 ```
 
+## Modules Requirement Graph
+
+[![dependency.png](./dependency.png)](./dependency.png)
+
 ## Reference
 
 - [DDRBoxman/go-amazon-product-api: Wrapper for the Amazon Product Advertising API](https://github.com/DDRBoxman/go-amazon-product-api)
diff --git a/Taskfile.yml b/Taskfile.yml
new file mode 100644
index 0000000..b3088f0
--- /dev/null
+++ b/Taskfile.yml
@@ -0,0 +1,50 @@
+version: '3'
+
+tasks:
+  default:
+    cmds:
+      - task: clean
+      - task: test
+      - task: nancy
+      - task: graph
+
+  build-all:
+    desc: Build executable binary with GoReleaser.
+    cmds:
+      - goreleaser --snapshot --skip-publish --rm-dist
+
+  test:
+    desc: Test and lint.
+    cmds:
+      - go mod verify
+      - go test ./...
+      - docker run --rm -v $(pwd):/app -w /app golangci/golangci-lint:v1.40.1 golangci-lint run --enable gosec --timeout 3m0s ./...
+    sources:
+      - ./go.mod
+      - '**/*.go'
+
+  nancy:
+    desc: Check vulnerability of external packages with Nancy.
+    cmds:
+      - depm list -j | docker run --rm -i sonatypecommunity/nancy:latest sleuth -n
+    sources:
+      - ./go.mod
+      - '**/*.go'
+
+  clean:
+    desc: Initialize module and build cache, and remake go.sum file.
+    cmds:
+      - rm -f ./go.sum
+      - go clean -cache
+      - go clean -modcache
+      - go mod tidy -v
+
+  graph:
+    desc: Make grapth of dependency modules.
+    cmds:
+      - depm m --dot --dot-config dot-config.toml | dot -Tpng -o ./dependency.png
+    sources:
+      - ./go.mod
+      - '**/*.go'
+    generates:
+      - ./dependency.png
diff --git a/api/aozoraapi/aozoraapi.go b/api/aozoraapi/aozoraapi.go
index a478c31..130ab92 100644
--- a/api/aozoraapi/aozoraapi.go
+++ b/api/aozoraapi/aozoraapi.go
@@ -5,7 +5,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"net/http"
 	"strconv"
 
 	"github.com/spiegel-im-spiegel/aozora-api"
@@ -19,14 +18,13 @@ import (
 type AozoraAPI struct {
 	svcType api.ServiceType //Service Type
 	server  *aozora.Server  //server info.
-	ctx     context.Context //context
 }
 
 var _ api.API = (*AozoraAPI)(nil) //AozoraAPI is compatible with api.API interface
 
 //New returns OpenBD instance
-func New(ctx context.Context) *AozoraAPI {
-	return &AozoraAPI{svcType: api.TypeAozoraAPI, server: aozora.New(), ctx: ctx}
+func New() *AozoraAPI {
+	return &AozoraAPI{svcType: api.TypeAozoraAPI, server: aozora.New()}
 }
 
 //Name returns name of API
@@ -35,7 +33,7 @@ func (a *AozoraAPI) Name() string {
 }
 
 //LookupRawData returns openBD raw data
-func (a *AozoraAPI) LookupRawData(id string) (io.Reader, error) {
+func (a *AozoraAPI) LookupRawData(ctx context.Context, id string) (io.Reader, error) {
 	bookId, err := strconv.Atoi(id)
 	if err != nil {
 		return nil, errs.New(
@@ -43,7 +41,7 @@ func (a *AozoraAPI) LookupRawData(id string) (io.Reader, error) {
 			errs.WithContext("id", id),
 		)
 	}
-	b, err := a.server.CreateClient(aozora.WithContext(a.ctx), aozora.WithHttpClient(&http.Client{})).LookupBookRaw(bookId)
+	b, err := a.server.CreateClient().LookupBookRawContext(ctx, bookId)
 	if err != nil {
 		return nil, errs.Wrap(err, errs.WithContext("id", id))
 	}
@@ -51,7 +49,7 @@ func (a *AozoraAPI) LookupRawData(id string) (io.Reader, error) {
 }
 
 //LookupBook returns Book data from openBD
-func (a *AozoraAPI) LookupBook(id string) (*entity.Book, error) {
+func (a *AozoraAPI) LookupBook(ctx context.Context, id string) (*entity.Book, error) {
 	bookId, err := strconv.Atoi(id)
 	if err != nil {
 		return nil, errs.New(
@@ -60,7 +58,7 @@ func (a *AozoraAPI) LookupBook(id string) (*entity.Book, error) {
 			errs.WithContext("id", id),
 		)
 	}
-	bk, err := a.server.CreateClient(aozora.WithContext(a.ctx), aozora.WithHttpClient(&http.Client{})).LookupBook(bookId)
+	bk, err := a.server.CreateClient().LookupBookContext(ctx, bookId)
 	if err != nil {
 		return nil, errs.Wrap(err, errs.WithContext("id", id))
 	}
@@ -73,7 +71,7 @@ func (a *AozoraAPI) LookupBook(id string) (*entity.Book, error) {
 		OriginalTitle:   bk.OriginalTitle,
 		URL:             bk.CardURL,
 		ProductType:     "青空文庫",
-		Codes:           []entity.Code{entity.Code{Name: "図書カードNo.", Value: strconv.Itoa(bk.BookID)}},
+		Codes:           []entity.Code{{Name: "図書カードNo.", Value: strconv.Itoa(bk.BookID)}},
 		Creators:        getCreators(bk),
 		PublicationDate: values.NewDate(bk.ReleaseDate.Time),
 		LastRelease:     values.NewDate(bk.LastModified.Time),
@@ -103,7 +101,7 @@ func getCreators(bk *aozora.Book) []entity.Creator {
 	return creators
 }
 
-/* Copyright 2019,2020 Spiegel
+/* Copyright 2019-2021 Spiegel
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/api/api.go b/api/api.go
index c4376ba..efcb49c 100644
--- a/api/api.go
+++ b/api/api.go
@@ -1,6 +1,7 @@
 package api
 
 import (
+	"context"
 	"io"
 
 	"github.com/spiegel-im-spiegel/books-data/entity"
@@ -8,9 +9,9 @@ import (
 
 //API is interface class  for searching book API
 type API interface {
-	Name() string                               //Name of API
-	LookupBook(id string) (*entity.Book, error) //Lookup book data by API
-	LookupRawData(id string) (io.Reader, error) //Lookup raw data by API
+	Name() string                                                    //Name of API
+	LookupBook(ctx context.Context, id string) (*entity.Book, error) //Lookup book data by API
+	LookupRawData(ctx context.Context, id string) (io.Reader, error) //Lookup raw data by API
 }
 
 /* Copyright 2019 Spiegel
diff --git a/api/openbd/openbd.go b/api/openbd/openbd.go
index b427865..aee85d1 100644
--- a/api/openbd/openbd.go
+++ b/api/openbd/openbd.go
@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
-	"net/http"
 
 	"github.com/spiegel-im-spiegel/books-data/api"
 	"github.com/spiegel-im-spiegel/books-data/ecode"
@@ -20,14 +19,13 @@ import (
 type OpenBD struct {
 	svcType api.ServiceType //Service Type
 	server  *obd.Server     //server info.
-	ctx     context.Context //context
 }
 
 var _ api.API = (*OpenBD)(nil) //OpenBD is compatible with api.API interface
 
 //New returns OpenBD instance
-func New(ctx context.Context) *OpenBD {
-	return &OpenBD{svcType: api.TypeOpenBD, server: obd.New(), ctx: ctx}
+func New() *OpenBD {
+	return &OpenBD{svcType: api.TypeOpenBD, server: obd.New()}
 }
 
 //Name returns name of API
@@ -36,8 +34,8 @@ func (a *OpenBD) Name() string {
 }
 
 ///LookupRawData returns openBD raw data
-func (a *OpenBD) LookupRawData(id string) (io.Reader, error) {
-	res, err := a.server.CreateClient(obd.WithContext(a.ctx), obd.WithHttpClient(&http.Client{})).LookupBooksRaw([]string{id})
+func (a *OpenBD) LookupRawData(ctx context.Context, id string) (io.Reader, error) {
+	res, err := a.server.CreateClient().LookupBooksRawContext(ctx, []string{id})
 	if err != nil {
 		return nil, errs.New(
 			fmt.Sprintf("invalid book id: %v", id),
@@ -49,8 +47,8 @@ func (a *OpenBD) LookupRawData(id string) (io.Reader, error) {
 }
 
 ///LookupBook returns Book data from openBD
-func (a *OpenBD) LookupBook(id string) (*entity.Book, error) {
-	data, err := a.LookupRawData(id)
+func (a *OpenBD) LookupBook(ctx context.Context, id string) (*entity.Book, error) {
+	data, err := a.LookupRawData(ctx, id)
 	if err != nil {
 		return nil, errs.Wrap(err, errs.WithContext("id", id))
 	}
@@ -71,7 +69,7 @@ func (a *OpenBD) LookupBook(id string) (*entity.Book, error) {
 			URL: bd.ImageURL(),
 		},
 		ProductType:     "Book",
-		Codes:           []entity.Code{entity.Code{Name: "ISBN", Value: bd.ISBN()}},
+		Codes:           []entity.Code{{Name: "ISBN", Value: bd.ISBN()}},
 		Creators:        getCreators(bd),
 		Publisher:       bd.Publisher(),
 		PublicationDate: values.NewDate(bd.PublicationDate().Time),
@@ -104,7 +102,7 @@ func unmarshalJSON(jsondata io.Reader) (*obd.Book, error) {
 	return &books[0], nil
 }
 
-/* Copyright 2019,2020 Spiegel
+/* Copyright 2019-2021 Spiegel
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/api/pa/entity.go b/api/pa/entity.go
index 92ed1c1..ab351f8 100644
--- a/api/pa/entity.go
+++ b/api/pa/entity.go
@@ -134,7 +134,7 @@ func (i *Item) ProductType() string {
 }
 
 func (i *Item) Codes() []entity.Code {
-	codes := []entity.Code{entity.Code{Name: "ASIN", Value: i.ASIN}}
+	codes := []entity.Code{{Name: "ASIN", Value: i.ASIN}}
 	if i.ItemInfo != nil && i.ItemInfo.ExternalIds != nil {
 		ids := i.ItemInfo.ExternalIds.EANs
 		if ids != nil {
@@ -255,7 +255,7 @@ func (r *Response) String() string {
 	return string(b)
 }
 
-/* Copyright 2019,2020 Spiegel
+/* Copyright 2019-2021 Spiegel
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/api/pa/paapi5.go b/api/pa/paapi5.go
index 93c96c6..d302a25 100644
--- a/api/pa/paapi5.go
+++ b/api/pa/paapi5.go
@@ -5,7 +5,6 @@ import (
 	"context"
 	"encoding/json"
 	"io"
-	"net/http"
 
 	"github.com/spiegel-im-spiegel/books-data/api"
 	"github.com/spiegel-im-spiegel/books-data/entity"
@@ -19,21 +18,19 @@ type PAAPI5 struct {
 	associateTag string
 	accessKey    string
 	secretKey    string
-	server       *paapi5.Server  //server info.
-	ctx          context.Context //context
+	server       *paapi5.Server //server info.
 }
 
 var _ api.API = (*PAAPI5)(nil) //PAAPI5 is compatible with api.API interface
 
 //New returns PaAPI instance
-func New(ctx context.Context, marketplace, associateTag, accessKey, secretKey string) *PAAPI5 {
+func New(marketplace, associateTag, accessKey, secretKey string) *PAAPI5 {
 	return &PAAPI5{
 		svcType:      api.TypePAAPI,
 		associateTag: associateTag,
 		accessKey:    accessKey,
 		secretKey:    secretKey,
 		server:       paapi5.New(paapi5.WithMarketplace(paapi5.MarketplaceOf(marketplace))),
-		ctx:          ctx,
 	}
 }
 
@@ -43,16 +40,14 @@ func (a *PAAPI5) Name() string {
 }
 
 ///LookupRawData returns PA-API raw data
-func (a *PAAPI5) LookupRawData(id string) (io.Reader, error) {
+func (a *PAAPI5) LookupRawData(ctx context.Context, id string) (io.Reader, error) {
 	client := a.server.CreateClient(
 		a.associateTag,
 		a.accessKey,
 		a.secretKey,
-		paapi5.WithContext(a.ctx),
-		paapi5.WithHttpClient(&http.Client{}),
 	)
 	q := NewQuery(client.Marketplace(), client.PartnerTag(), client.PartnerType(), []string{id})
-	body, err := client.Request(q)
+	body, err := client.RequestContext(ctx, q)
 	if err != nil {
 		return nil, errs.Wrap(err, errs.WithContext("id", id))
 	}
@@ -61,8 +56,8 @@ func (a *PAAPI5) LookupRawData(id string) (io.Reader, error) {
 }
 
 ///LookupBook returns Book data from PA-API
-func (a *PAAPI5) LookupBook(id string) (*entity.Book, error) {
-	r, err := a.LookupRawData(id)
+func (a *PAAPI5) LookupBook(ctx context.Context, id string) (*entity.Book, error) {
+	r, err := a.LookupRawData(ctx, id)
 	if err != nil {
 		return nil, errs.Wrap(err, errs.WithContext("id", id))
 	}
@@ -74,7 +69,7 @@ func (a *PAAPI5) LookupBook(id string) (*entity.Book, error) {
 	return book, errs.Wrap(err, errs.WithContext("id", id))
 }
 
-/* Copyright 2019,2020 Spiegel
+/* Copyright 2019-2021 Spiegel
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/clean-all.sh b/clean-all.sh
deleted file mode 100755
index 53c80b5..0000000
--- a/clean-all.sh
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/bin/bash
-rm ./go.sum
-go clean -cache
-go clean -modcache
diff --git a/dependency.png b/dependency.png
new file mode 100644
index 0000000..d7d7050
Binary files /dev/null and b/dependency.png differ
diff --git a/dot-config.toml b/dot-config.toml
new file mode 100644
index 0000000..a767d55
--- /dev/null
+++ b/dot-config.toml
@@ -0,0 +1,4 @@
+[node]
+  fontname = "Inconsolata"
+[edge]
+  color = "red"
diff --git a/facade/aozora.go b/facade/aozora.go
index cd0c675..32ce9e7 100644
--- a/facade/aozora.go
+++ b/facade/aozora.go
@@ -10,11 +10,10 @@ import (
 )
 
 func searchAozoraAPI(ctx context.Context, id string, rawFlag bool) (io.Reader, error) {
-	aozora := aozoraapi.New(ctx)
 	if rawFlag {
-		return aozora.LookupRawData(id)
+		return aozoraapi.New().LookupRawData(ctx, id)
 	}
-	book, err := aozora.LookupBook(id)
+	book, err := aozoraapi.New().LookupBook(ctx, id)
 	if err != nil {
 		return nil, err
 	}
@@ -26,10 +25,10 @@ func searchAozoraAPI(ctx context.Context, id string, rawFlag bool) (io.Reader, e
 }
 
 func findAozoraAPI(ctx context.Context, id string) (*entity.Book, error) {
-	return aozoraapi.New(ctx).LookupBook(id)
+	return aozoraapi.New().LookupBook(ctx, id)
 }
 
-/* Copyright 2019 Spiegel
+/* Copyright 2019-2021 Spiegel
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/facade/openbd.go b/facade/openbd.go
index 25ee614..b6bbd94 100644
--- a/facade/openbd.go
+++ b/facade/openbd.go
@@ -10,11 +10,10 @@ import (
 )
 
 func searchOpenBD(ctx context.Context, id string, rawFlag bool) (io.Reader, error) {
-	obdapi := openbd.New(ctx)
 	if rawFlag {
-		return obdapi.LookupRawData(id)
+		return openbd.New().LookupRawData(ctx, id)
 	}
-	book, err := obdapi.LookupBook(id)
+	book, err := openbd.New().LookupBook(ctx, id)
 	if err != nil {
 		return nil, err
 	}
@@ -26,10 +25,10 @@ func searchOpenBD(ctx context.Context, id string, rawFlag bool) (io.Reader, erro
 }
 
 func findOpenBD(ctx context.Context, id string) (*entity.Book, error) {
-	return openbd.New(ctx).LookupBook(id)
+	return openbd.New().LookupBook(ctx, id)
 }
 
-/* Copyright 2019 Spiegel
+/* Copyright 2019-2021 Spiegel
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/facade/paapi.go b/facade/paapi.go
index 5a245e5..f1fe499 100644
--- a/facade/paapi.go
+++ b/facade/paapi.go
@@ -41,9 +41,8 @@ func getPaapiParams() (*paapiParams, error) {
 	return &paapiParams{marketplace: marketplace, associateTag: associateTag, accessKey: accessKey, secretKey: secretKey}, nil
 }
 
-func createPAAPI(ctx context.Context, p *paapiParams) api.API {
+func createPAAPI(p *paapiParams) api.API {
 	return pa.New(
-		ctx,
 		p.marketplace,
 		p.associateTag,
 		p.accessKey,
@@ -53,9 +52,9 @@ func createPAAPI(ctx context.Context, p *paapiParams) api.API {
 
 func searchPAAPI(ctx context.Context, id string, p *paapiParams, rawFlag bool) (io.Reader, error) {
 	if rawFlag {
-		return createPAAPI(ctx, p).LookupRawData(id)
+		return createPAAPI(p).LookupRawData(ctx, id)
 	}
-	book, err := createPAAPI(ctx, p).LookupBook(id)
+	book, err := createPAAPI(p).LookupBook(ctx, id)
 	if err != nil {
 		return nil, errs.Wrap(err, errs.WithContext("id", id))
 	}
@@ -67,10 +66,10 @@ func searchPAAPI(ctx context.Context, id string, p *paapiParams, rawFlag bool) (
 }
 
 func findPAAPI(ctx context.Context, id string, p *paapiParams) (*entity.Book, error) {
-	return createPAAPI(ctx, p).LookupBook(id)
+	return createPAAPI(p).LookupBook(ctx, id)
 }
 
-/* Copyright 2019,2020 Spiegel
+/* Copyright 2019-2021 Spiegel
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/go.mod b/go.mod
index 4a5b5cb..2b6b162 100644
--- a/go.mod
+++ b/go.mod
@@ -1,16 +1,15 @@
 module github.com/spiegel-im-spiegel/books-data
 
-go 1.15
+go 1.16
 
 require (
-	github.com/spf13/cobra v1.0.1-0.20201001152800-40d34bca1bff
+	github.com/spf13/cobra v1.1.3
 	github.com/spf13/viper v1.7.1
-	github.com/spiegel-im-spiegel/aozora-api v0.2.6
+	github.com/spiegel-im-spiegel/aozora-api v0.3.0
 	github.com/spiegel-im-spiegel/errs v1.0.2
-	github.com/spiegel-im-spiegel/gocli v0.10.3
-	github.com/spiegel-im-spiegel/openbd-api v0.2.6
-	github.com/spiegel-im-spiegel/pa-api v0.7.2
-	golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f // indirect
+	github.com/spiegel-im-spiegel/gocli v0.10.4
+	github.com/spiegel-im-spiegel/openbd-api v0.3.0
+	github.com/spiegel-im-spiegel/pa-api v0.9.0
 )
 
-replace github.com/coreos/etcd v3.3.13+incompatible => github.com/coreos/etcd v3.3.25+incompatible
+replace golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0 => golang.org/x/sys v0.0.0-20210521090106-6ca3eb03dfc2
diff --git a/go.sum b/go.sum
index c0c2cee..8c2cbda 100644
--- a/go.sum
+++ b/go.sum
@@ -27,7 +27,7 @@ github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJm
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
-github.com/coreos/etcd v3.3.25+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
+github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
@@ -163,8 +163,8 @@ github.com/spf13/afero v1.1.2 h1:m8/z1t7/fwjysjQRYbP0RD+bUIF/8tJwPdEZsI83ACI=
 github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
 github.com/spf13/cast v1.3.0 h1:oget//CVOEoFewqQxwr0Ej5yjygnqGkvggSE/gB35Q8=
 github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
-github.com/spf13/cobra v1.0.1-0.20201001152800-40d34bca1bff h1:lXHkF95Duj/nGE2mY+kNS5DJX5OJ04jO7WA6zCqrp/0=
-github.com/spf13/cobra v1.0.1-0.20201001152800-40d34bca1bff/go.mod h1:yk5b0mALVusDL5fMM6Rd1wgnoO5jUPhwsQ6LQAJTidQ=
+github.com/spf13/cobra v1.1.3 h1:xghbfqPkxzxP3C/f3n5DdpAbdKLj4ZE4BWQI362l53M=
+github.com/spf13/cobra v1.1.3/go.mod h1:pGADOWyqRD/YMrPZigI/zbliZ2wVD/23d+is3pSWzOo=
 github.com/spf13/jwalterweatherman v1.0.0 h1:XHEdyB+EcvlqZamSM4ZOMGlc93t6AcsBEu9Gc1vn7yk=
 github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
@@ -173,16 +173,18 @@ github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An
 github.com/spf13/viper v1.7.0/go.mod h1:8WkrPz2fc9jxqZNCJI/76HCieCp4Q8HaLFoCha5qpdg=
 github.com/spf13/viper v1.7.1 h1:pM5oEahlgWv/WnHXpgbKz7iLIxRf65tye2Ci+XFK5sk=
 github.com/spf13/viper v1.7.1/go.mod h1:8WkrPz2fc9jxqZNCJI/76HCieCp4Q8HaLFoCha5qpdg=
-github.com/spiegel-im-spiegel/aozora-api v0.2.6 h1:U7tnnBx2MGND6kVFdFnvf34BJyUUemjSHLlMRtW/KlA=
-github.com/spiegel-im-spiegel/aozora-api v0.2.6/go.mod h1:qWT6b+x6hpFeGvN9r2gZRQ9kBYvlzNoDHmaD73poCH0=
+github.com/spiegel-im-spiegel/aozora-api v0.3.0 h1:VRUKY0XYkiJ8EcN/97Vv5Xu7fZBskRKC37Sn19JfNEM=
+github.com/spiegel-im-spiegel/aozora-api v0.3.0/go.mod h1:Gzmim5/QYWOqU4Nmti+THH39AxJ1yzEatKj9065JBz8=
 github.com/spiegel-im-spiegel/errs v1.0.2 h1:v4amEwRDqRWjKHOILQnJSovYhZ4ZttEnBBXNXEzS6Sc=
 github.com/spiegel-im-spiegel/errs v1.0.2/go.mod h1:UoasJYYujMcdkbT9USv8dfZWoMyaY3btqQxoLJImw0A=
-github.com/spiegel-im-spiegel/gocli v0.10.3 h1:+9V71Tl3ELjNEsEcXVSZKxJHaiTC55mVsPQwrZq8AAc=
-github.com/spiegel-im-spiegel/gocli v0.10.3/go.mod h1:9vRvly2giutJ2sAtQjrw570p9ulJA3twgKlurmnj12g=
-github.com/spiegel-im-spiegel/openbd-api v0.2.6 h1:4hpcfNPlF3tZmeVKwnbsUs9KEXyUGvltUDhMKFmVftE=
-github.com/spiegel-im-spiegel/openbd-api v0.2.6/go.mod h1:FqVoZkWltWw7/R4EewubQoLFd2dfRRmg6RmnmM/YTmY=
-github.com/spiegel-im-spiegel/pa-api v0.7.2 h1:9l++1a61k68RaoNSQIYQGCIh2F5DaJzxsYKcb/ahHms=
-github.com/spiegel-im-spiegel/pa-api v0.7.2/go.mod h1:NqvGh1mER0rAAHIFgmO0ri/6VXSedi2VrLke3oVQul8=
+github.com/spiegel-im-spiegel/fetch v0.2.3 h1:Zh5rHvOjfC81rxKvtUD21JT609smds+BRh+H84s8qEw=
+github.com/spiegel-im-spiegel/fetch v0.2.3/go.mod h1:ePIXxdC9OvSarXEO6HW1MgQwtBaKQo0qgDLOhKFXkQ0=
+github.com/spiegel-im-spiegel/gocli v0.10.4 h1:aoAWdiQ4hjNxmEod4EeTZTcjdCJcrNOwgHBs5BQYnEQ=
+github.com/spiegel-im-spiegel/gocli v0.10.4/go.mod h1:ffI3zoggRyLOZ+IIgaVN8WVMUwfIwfvCEd/0Yl/PZ98=
+github.com/spiegel-im-spiegel/openbd-api v0.3.0 h1:CUXN49IViwajAkdv36SY9Ozkrh5oeoJRpMm9Q40tyM8=
+github.com/spiegel-im-spiegel/openbd-api v0.3.0/go.mod h1:iX7B/fHcp9585JYae9hiHinjNRTC4rhXh83CTE3c4IY=
+github.com/spiegel-im-spiegel/pa-api v0.9.0 h1:xbrPJDAbDf0dzYu7BRfIr0pdHQDYpvsQmcjitpaOxP8=
+github.com/spiegel-im-spiegel/pa-api v0.9.0/go.mod h1:DYAuXUPAi1xrNroBybPo/JIzPXo3VCAF/33mEJgf9hU=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
@@ -255,9 +257,8 @@ golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210521090106-6ca3eb03dfc2 h1:48AqIJLs69Wmc3mA52aIcqt544rjrDCqolKAv7L8leA=
+golang.org/x/sys v0.0.0-20210521090106-6ca3eb03dfc2/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
@@ -314,8 +315,8 @@ gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/review/api_test.go b/review/api_test.go
index 889dcd5..f97474b 100644
--- a/review/api_test.go
+++ b/review/api_test.go
@@ -2,6 +2,7 @@ package review
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -23,12 +24,12 @@ func (ta testAPI) Name() string {
 	return "test"
 }
 
-func (ta testAPI) LookupRawData(id string) (io.Reader, error) {
+func (ta testAPI) LookupRawData(ctx context.Context, id string) (io.Reader, error) {
 	return bytes.NewBufferString(ta.output), nil
 }
 
-func (ta testAPI) LookupBook(id string) (*entity.Book, error) {
-	r, _ := ta.LookupRawData(id)
+func (ta testAPI) LookupBook(ctx context.Context, id string) (*entity.Book, error) {
+	r, _ := ta.LookupRawData(ctx, id)
 	dec := json.NewDecoder(r)
 	books := &entity.Book{}
 	if err := dec.Decode(books); err != nil {
@@ -78,7 +79,7 @@ var (
 
 func TestAPI(t *testing.T) {
 	tc := NewTestAPI()
-	book, err := tc.LookupBook("card56642")
+	book, err := tc.LookupBook(context.Background(), "card56642")
 	if err != nil {
 		t.Errorf("testAPI.LookupBook() error is \"%v\", want nil", err)
 		fmt.Printf("Info: %+v\n", err)
@@ -90,7 +91,7 @@ func TestAPI(t *testing.T) {
 	}
 }
 
-/* Copyright 2019 Spiegel
+/* Copyright 2019-2021 Spiegel
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/review/review_test.go b/review/review_test.go
index 6567690..0280db5 100644
--- a/review/review_test.go
+++ b/review/review_test.go
@@ -1,6 +1,7 @@
 package review
 
 import (
+	"context"
 	"fmt"
 	"testing"
 )
@@ -8,7 +9,7 @@ import (
 func TestReview(t *testing.T) {
 	res := `{"Book":` + testBookResp + `,"Date":"2019-01-01","Rating":4,"Star":[true,true,true,true,false],"Description":"実はちゃんと読んでない（笑） 学生時代に読んでおけばよかった。"}`
 	tc := NewTestAPI()
-	book, err := tc.LookupBook("card56642")
+	book, err := tc.LookupBook(context.Background(), "card56642")
 	if err != nil {
 		t.Errorf("testAPI.LookupBook() error is \"%v\", want nil", err)
 		fmt.Printf("Info: %+v\n", err)
@@ -48,7 +49,7 @@ var formattedText = `<div class="hreview">
 
 func TestTemplate(t *testing.T) {
 	tc := NewTestAPI()
-	book, err := tc.LookupBook("card56642")
+	book, err := tc.LookupBook(context.Background(), "card56642")
 	if err != nil {
 		t.Errorf("testAPI.LookupBook() error is \"%v\", want nil", err)
 		fmt.Printf("Info: %+v\n", err)
@@ -71,7 +72,7 @@ func TestTemplate(t *testing.T) {
 	}
 }
 
-/* Copyright 2019 Spiegel
+/* Copyright 2019-2021 Spiegel
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/test-all.sh b/test-all.sh
deleted file mode 100755
index 58eb31d..0000000
--- a/test-all.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/bash
-go mod verify || exit 1
-go mod tidy -v || exit 1
-go list -json -m all | nancy sleuth -n || exit 1
-golangci-lint run ./... || exit 1
-go test ./...