diff --git a/.github/workflows/claude-code-review.yml b/.github/workflows/claude-code-review.yml
index 4caf96a2f..b9982252b 100644
--- a/.github/workflows/claude-code-review.yml
+++ b/.github/workflows/claude-code-review.yml
@@ -33,7 +33,7 @@ jobs:
 
       - name: Run Claude Code Review
         id: claude-review
-        uses: anthropics/claude-code-action@v1
+        uses: anthropics/claude-code-action@3ac52d0da9f8ec9ca7b4dc23bb477e36ef9c77a9 # v1
         with:
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
           prompt: |
@@ -51,4 +51,3 @@ jobs:
           # See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
           # or https://docs.anthropic.com/en/docs/claude-code/sdk#command-line for available options
           claude_args: '--allowed-tools "Bash(gh issue view:*),Bash(gh search:*),Bash(gh issue list:*),Bash(gh pr comment:*),Bash(gh pr diff:*),Bash(gh pr view:*),Bash(gh pr list:*)"'
-
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index ae36c007f..bbcb05b7f 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -32,7 +32,7 @@ jobs:
 
       - name: Run Claude Code
         id: claude
-        uses: anthropics/claude-code-action@v1
+        uses: anthropics/claude-code-action@3ac52d0da9f8ec9ca7b4dc23bb477e36ef9c77a9 # v1
         with:
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}
           
@@ -47,4 +47,3 @@ jobs:
           # See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
           # or https://docs.anthropic.com/en/docs/claude-code/sdk#command-line for available options
           # claude_args: '--model claude-opus-4-1-20250805 --allowed-tools Bash(gh pr:*)'
-