diff --git a/.github/workflows/chore.yml b/.github/workflows/chore.yml
index 56a22af..9bde3e2 100644
--- a/.github/workflows/chore.yml
+++ b/.github/workflows/chore.yml
@@ -21,14 +21,14 @@ jobs:
     steps:
       - name: Check valid conventional commit message
         id: lint
-        uses: amannn/action-semantic-pull-request@v6
+        uses: amannn/action-semantic-pull-request@48f256284bd46cdaab1048c3721360e808335d50 # v6.1.1
         with:
           subjectPattern: ^[A-Z].+[^. ]$ # subject must start with uppercase letter and may not end with a dot/space
         env:
           GITHUB_TOKEN: ${{ github.token }}
       - name: Post comment about invalid PR title
         if: failure()
-        uses: marocchino/sticky-pull-request-comment@v2
+        uses: marocchino/sticky-pull-request-comment@773744901bac0e8cbb5a0dc842800d45e9b2b405 # v2.9.4
         with:
           header: conventional-commit-pr-title
           message: |
@@ -45,7 +45,7 @@ jobs:
             </details>
       - name: Delete comment about invalid PR title
         if: success()
-        uses: marocchino/sticky-pull-request-comment@v2
+        uses: marocchino/sticky-pull-request-comment@773744901bac0e8cbb5a0dc842800d45e9b2b405 # v2.9.4
         with:
           header: conventional-commit-pr-title
           delete: true
@@ -58,7 +58,7 @@ jobs:
       pull-requests: write
     steps:
       - name: ${{ github.event_name == 'pull_request' && 'Assign labels' || 'Update release draft' }}
-        uses: release-drafter/release-drafter@v6
+        uses: release-drafter/release-drafter@6db134d15f3909ccc9eefd369f02bd1e9cffdf97 # v6.2.0
         with:
           disable-releaser: ${{ github.event_name == 'pull_request' }}
           disable-autolabeler: ${{ github.event_name == 'push' }}