diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 57c6e77..aa46c60 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -3,9 +3,9 @@ on:
   push:
     branches:
       - master
-      - ci
     paths:
       - "Dockerfile"
+    workflow_dispatch:
 
 name: release image
 
@@ -15,13 +15,13 @@ jobs:
     # build-push-action use git context,
     # do not need to use actions/checkout
     steps:
-      - 
+      -
         name: Set up QEMU
         uses: docker/setup-qemu-action@v2
-      - 
+      -
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
-      - 
+      -
         name: Login to DockerHub
         uses: docker/login-action@v2
         with:
diff --git a/.github/workflows/release_ghcr.yaml b/.github/workflows/release_ghcr.yaml
index 2e52110..98e0508 100644
--- a/.github/workflows/release_ghcr.yaml
+++ b/.github/workflows/release_ghcr.yaml
@@ -3,7 +3,6 @@ on:
   push:
     branches:
       - master
-      - 'ci/*'
     paths:
       - "Dockerfile"
   workflow_dispatch:
@@ -22,23 +21,23 @@ jobs:
       packages: write
       contents: read
     steps:
-      - 
+      -
         name: checkout
         uses: actions/checkout@v3
-      - 
+      -
         name: Log in to the Container registry
         uses: docker/login-action@v2
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-      - 
+      -
         name: extract metadata
         id: meta
         uses: docker/metadata-action@v4
         with:
           images: ghcr.io/${{ env.ORG_NAME }}/${{ env.IMAGE_TAG }}
-      - 
+      -
         name: push image to ghcr
         uses: docker/build-push-action@v3
         with:
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 4361076..e98558d 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -1,8 +1,5 @@
 on:
   push:
-    branches:
-      - master
-      - ci
   pull_request:
     branches:
       - master
@@ -13,11 +10,10 @@ jobs:
   docker-compose:
     runs-on: ubuntu-latest
     steps:
-      - 
+      -
         name: checkout
         uses: actions/checkout@v2
-      - 
+      -
         name: run container
         run: |
           docker compose up -d
- 
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 69968c5..7ae91a0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM ubuntu:latest
 
-# Docker image: tut-env:v1 
+# Docker image: tut-env:v1
 LABEL organization="TJ-CSCCG"
 LABEL maintainer="skyleaworlder"
 LABEL version="v1"
@@ -25,10 +25,10 @@ RUN apt-get install -y git \
         wget \
         libfontconfig \
         python3 \
-        python3-pip && \
+        pipx && \
     rm -rf /var/lib/apt/lists/* && \
     apt-get clean
-RUN pip install Pygments -i https://pypi.tuna.tsinghua.edu.cn/simple
+RUN pipx install Pygments -i https://pypi.tuna.tsinghua.edu.cn/simple
 
 # download & install TeXLive
 COPY texlive.profile ${TL_PROFILE_PATH}