diff --git a/.github/actions/Dockerfile b/.github/actions/Dockerfile
deleted file mode 100644
index 522fcdc..0000000
--- a/.github/actions/Dockerfile
+++ /dev/null
@@ -1,73 +0,0 @@
-FROM python:slim as python
-RUN pip3 install anshitsu
-RUN python3 svg.py
-RUN python3 grayscaling.py
-
-FROM ruby:slim as base
-ENV VOLTA_HOME=/usr/local
-RUN apt update && \
-    apt install -y autoconf \ 
-                       bison \
-                       build-essential \
-                       libssl-dev \
-                       libyaml-dev \
-                       libreadline6-dev \
-                       zlib1g-dev \
-                       libncurses5-dev \
-                       libffi-dev \
-                       libgdbm6 \
-                       libgdbm-dev \
-                       libdb-dev \
-                       locales \
-                       git-core \
-                       zip \
-                       unzip \
-                       fontconfig \
-                       apt-utils \
-                       bash \
-                       curl \
-                       sudo \
-                       librsvg2-bin \
-                       libssl-dev \
-                       libreadline-dev \
-                       sudo \
-                       cron \
-                       libcairo2-dev \
-                       libffi-dev \
-                       zlib1g-dev \
-                       libatk-bridge2.0-0 \
-                       libgtk-3-0 \
-                       libasound2 \
-                       pandoc \
-                       mecab \
-                       mecab-ipadic-utf8 \
-                       libmecab-dev \
-                       libgbm-dev \
-                       file \
-                       xz-utils \
-                       poppler-data \
-                       graphviz \
-                       poppler-utils && \
-                       apt clean
-
-RUN curl https://get.volta.sh | bash &&\
-    volta install node@lts pnpm@latest
-
-ENV PNPM_HOME="/pnpm"
-ENV PATH="$PNPM_HOME:$PATH"
-
-RUN pnpm install -g @vivliostyle/cli
-
-RUN git clone https://github.com/neologd/mecab-ipadic-neologd.git && \
-    cd mecab-ipadic-neologd && \
-    sudo bin/install-mecab-ipadic-neologd -y && \
-    sudo echo dicdir = /usr/lib/x86_64-linux-gnu/mecab/dic/mecab-ipadic-neologd > /etc/mecabrc
-
-RUN echo 'gem: --no-rdoc --no-ri' >> /.gemrc && \
-    gem update && \
-    bundle install
-
-RUN pnpm install
-RUN pnpm run style
-ENTRYPOINT ["./entrypoint.sh"]
-
diff --git a/.github/actions/action.yml b/.github/actions/action.yml
deleted file mode 100644
index feb61b5..0000000
--- a/.github/actions/action.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-name: 'build-book'
-description: 'Build Book by Vivliostyle'
-runs:
-  using: 'docker'
-  image: 'Dockerfile'
\ No newline at end of file
diff --git a/.github/actions/entrypoint.sh b/.github/actions/entrypoint.sh
deleted file mode 100755
index d12c837..0000000
--- a/.github/actions/entrypoint.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/sh -l
-
-REVIEW_CONFIG_FILE=config-vivliostyle.yml REVIEW_VSCLI_USESANDBOX=true bundle exec rake vivliostyle
\ No newline at end of file
diff --git a/.github/workflows/jobs.yml b/.github/workflows/jobs.yml
index 9a3a01a..df8f59a 100644
--- a/.github/workflows/jobs.yml
+++ b/.github/workflows/jobs.yml
@@ -236,7 +236,7 @@ jobs:
   vivliostyle-dockerfile:
     # needs: reviewdog-github-check
     name: Make PDF at Vivliostyle
-    runs-on: ubuntu-latest
+    runs-on: ghcr.io/huideyeren/vivliostyle-review-docker:5d69b10
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v3
@@ -248,9 +248,16 @@ jobs:
               # '%Y-%m-%d %H:%M'の部分を書き換えれば、任意の表示に変更できる。
       - name: Show date and time
         run: echo ${{ steps.date.outputs.date }} # 2022-01-03 10:42
-      - name: Build Book
-        uses: ./.github/actions/
-        id: build-book
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+      - name: Grayscaling images.
+        run: pip3 install anshitsu && pwd | python3 grayscaling.py >> .grayscaling.log
+      - name: Show .grayscaling.log
+        run: cat .grayscaling.log
+      - name: Build PDF.
+        run: REVIEW_CONFIG_FILE=config-vivliostyle.yml REVIEW_VSCLI_USESANDBOX=true bundle exec rake vivliostyle
       - name: Upload artifact.
         uses: actions/upload-artifact@v3
         with: