diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 1bd0a1f9..096df563 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -11,12 +11,12 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Set up Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v4
       with:
-        go-version: 1.15
+        go-version: 1.21
 
     - name: Build
       run: go build -v ./...
diff --git a/go.mod b/go.mod
index 9a725b68..f41a8e20 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/kkdai/LineBotTemplate
 
-// +heroku goVersion go1.17
-go 1.17
+// +heroku goVersion go1.21
+go 1.21
 
-require github.com/line/line-bot-sdk-go/v7 v7.19.0
+require github.com/line/line-bot-sdk-go/v7 v7.21.0
diff --git a/go.sum b/go.sum
index 40653cce..788754ee 100644
--- a/go.sum
+++ b/go.sum
@@ -1,12 +1,2 @@
-github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/line/line-bot-sdk-go/v7 v7.18.0 h1:ogrOioYKnCuyDlbNAuFb7hGdv1KGkluKWUcZx/Uocds=
-github.com/line/line-bot-sdk-go/v7 v7.18.0/go.mod h1:2CXH5xBgADszymGNRRUiUqBQ/0G6r2nx3BviBYtnB3U=
-github.com/line/line-bot-sdk-go/v7 v7.19.0 h1:WEbuBBSq65RMMqTn3vIl+Eb4wv2CjhZz7kiw8XTk2Wg=
-github.com/line/line-bot-sdk-go/v7 v7.19.0/go.mod h1:idpoxOZgtSd8JyhctMMpwg5LNgRAIL/QIxa5S0DXcMg=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
+github.com/line/line-bot-sdk-go/v7 v7.21.0 h1:eeYMuAwaDV5DZNTRqDipNhzjT51HwEcM1PRPG+cqh4Y=
+github.com/line/line-bot-sdk-go/v7 v7.21.0/go.mod h1:idpoxOZgtSd8JyhctMMpwg5LNgRAIL/QIxa5S0DXcMg=