diff --git a/github/action.yml b/github/action.yml
index 3d983a16099..94ed23d9149 100644
--- a/github/action.yml
+++ b/github/action.yml
@@ -50,7 +50,7 @@ runs:
 
     - name: Cache opencode
       id: cache
-      uses: actions/cache@v4
+      uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
       with:
         path: ~/.opencode/bin
         key: opencode-${{ runner.os }}-${{ runner.arch }}-${{ steps.version.outputs.version }}