diff --git a/README.md b/README.md
index 09d87ba..da8b2c6 100644
--- a/README.md
+++ b/README.md
@@ -94,7 +94,7 @@ jobs:
       run: hugo --gc --minify --cleanDestinationDir
 
     - name: Deploy
-      uses: peaceiris/actions-gh-pages@v2.3.0
+      uses: peaceiris/actions-gh-pages@v2.3.1
       env:
         ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
         PUBLISH_BRANCH: gh-pages
@@ -128,8 +128,8 @@ You can pull a public docker image from Docker Hub.
 By pulling docker images, you can reduce the overall execution time of your workflow. In addition, `latest` tag is provided.
 
 ```diff
-- uses: peaceiris/actions-gh-pages@v2.3.0
-+ uses: docker://peaceiris/gh-pages:v2.3.0
+- uses: peaceiris/actions-gh-pages@v2.3.1
++ uses: docker://peaceiris/gh-pages:v2.3.1
 ```
 
 - [peaceiris/gh-pages - Docker Hub](https://hub.docker.com/r/peaceiris/gh-pages)
@@ -162,7 +162,7 @@ For example:
 
 ```yaml
 - name: deploy
-  uses: peaceiris/actions-gh-pages@v2.3.0
+  uses: peaceiris/actions-gh-pages@v2.3.1
   env:
     ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
     PUBLISH_BRANCH: gh-pages
@@ -212,7 +212,7 @@ jobs:
         npm run build
 
     - name: deploy
-      uses: peaceiris/actions-gh-pages@v2.3.0
+      uses: peaceiris/actions-gh-pages@v2.3.1
       env:
         ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
         PUBLISH_BRANCH: gh-pages
@@ -260,7 +260,7 @@ jobs:
       run: npm run build
 
     - name: deploy
-      uses: peaceiris/actions-gh-pages@v2.3.0
+      uses: peaceiris/actions-gh-pages@v2.3.1
       env:
         ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
         PUBLISH_BRANCH: gh-pages
@@ -310,7 +310,7 @@ jobs:
       run: touch ./out/.nojekyll
 
     - name: deploy
-      uses: peaceiris/actions-gh-pages@v2.3.0
+      uses: peaceiris/actions-gh-pages@v2.3.1
       env:
         ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
         PUBLISH_BRANCH: gh-pages
@@ -357,7 +357,7 @@ jobs:
       run: npm run generate
 
     - name: deploy
-      uses: peaceiris/actions-gh-pages@v2.3.0
+      uses: peaceiris/actions-gh-pages@v2.3.1
       env:
         ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
         PUBLISH_BRANCH: gh-pages
@@ -405,7 +405,7 @@ jobs:
       run: mkdocs build
 
     - name: Deploy
-      uses: peaceiris/actions-gh-pages@v2.3.0
+      uses: peaceiris/actions-gh-pages@v2.3.1
       env:
         ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEPLOY_KEY }}
         PUBLISH_BRANCH: gh-pages