diff --git a/README.md b/README.md
index 30e47ff..b33340a 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ jobs:
     steps:
 
       - name: cdk diff
-        uses: youyo/aws-cdk-github-actions@v1
+        uses: youyo/aws-cdk-github-actions@v2
         with:
           cdk_subcommand: 'diff'
           actions_comment: true
@@ -29,7 +29,7 @@ jobs:
           AWS_DEFAULT_REGION: 'ap-northeast-1'
 
       - name: cdk deploy
-        uses: youyo/aws-cdk-github-actions@v1
+        uses: youyo/aws-cdk-github-actions@v2
         with:
           cdk_subcommand: 'deploy'
           cdk_stack: 'stack1'
@@ -41,7 +41,7 @@ jobs:
           AWS_DEFAULT_REGION: 'ap-northeast-1'
 
       - name: cdk synth
-        uses: youyo/aws-cdk-github-actions@v1
+        uses: youyo/aws-cdk-github-actions@v2
         with:
           cdk_subcommand: 'synth'
           cdk_version: '1.16.2'
@@ -76,7 +76,7 @@ jobs:
           AWS_DEFAULT_REGION: 'ap-northeast-1'
 
       - name: cdk diff
-        uses: youyo/aws-cdk-github-actions@v1
+        uses: youyo/aws-cdk-github-actions@v2
         with:
           cdk_subcommand: 'diff'
 ```