diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
index fa4de10a..b0ad453e 100644
--- a/.github/workflows/claude-code-review.yml
+++ b/.github/workflows/claude-code-review.yml
@@ -38,7 +38,7 @@ jobs:
       - name: Run Claude Code Review
         id: claude-review
         continue-on-error: true
-        uses: anthropics/claude-code-action@v1
+        uses: anthropics/claude-code-action@787c5a0ce96a9a6cfb050ea0c8f4c05f2447c251 # v1.0.133
         with:
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
           plugin_marketplaces: 'https://github.com/anthropics/claude-code.git'
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index 2409615f..49dad8c0 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -66,7 +66,7 @@ jobs:
 
       - name: Run Claude Code
         id: claude
-        uses: anthropics/claude-code-action@v1
+        uses: anthropics/claude-code-action@787c5a0ce96a9a6cfb050ea0c8f4c05f2447c251 # v1.0.133
         with:
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}