diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 79db47f9..1eaba246 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -74,4 +74,4 @@ jobs:
         run: npm run test -- --runInBand
 
       - name: ⬆️ Upload coverage report
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@b9fd7d16f6d7d1b5d2bec1a2887e65ceed900238 # v4
diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index a9b0c9dc..736f007d 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -18,7 +18,7 @@ jobs:
       contents: write
       pull-requests: write
     steps:
-      - uses: googleapis/release-please-action@v4
+      - uses: googleapis/release-please-action@16a9c90856f42705d54a6fda1823352bdc62cf38 # v4
         id: release
         with:
           config-file: .github/release-please/config.json