diff --git a/.github/workflows/pr-labeler.yml b/.github/workflows/pr-labeler.yml
index b5504e4..3396f44 100644
--- a/.github/workflows/pr-labeler.yml
+++ b/.github/workflows/pr-labeler.yml
@@ -13,6 +13,6 @@ jobs:
       pull-requests: write # for TimonVS/pr-labeler-action to add labels in PR
     runs-on: ubuntu-latest
     steps:
-      - uses: TimonVS/pr-labeler-action@v5
+      - uses: TimonVS/pr-labeler-action@f9c084306ce8b3f488a8f3ee1ccedc6da131d1af # v5
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/release-drafter.yml b/.github/workflows/release-drafter.yml
index 0633ae6..490618c 100644
--- a/.github/workflows/release-drafter.yml
+++ b/.github/workflows/release-drafter.yml
@@ -16,7 +16,7 @@ jobs:
     name: Release Drafter
     steps:
       - name: Checkout the repository
-        uses: actions/checkout@v4.2.1
+        uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4.2.1
         with:
           fetch-depth: 0
 
@@ -37,6 +37,6 @@ jobs:
           echo "name=mDNS-Browser Release $new_version" >> "$GITHUB_OUTPUT"
 
       - name: Run Release Drafter
-        uses: release-drafter/release-drafter@v6.0.0
+        uses: release-drafter/release-drafter@3f0f87098bd6b5c5b9a36d49c41d998ea58f9348 # v6.0.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}