diff --git a/.github/workflows/pr-title.yml b/.github/workflows/pr-title.yml
index fd355cd..8295c63 100644
--- a/.github/workflows/pr-title.yml
+++ b/.github/workflows/pr-title.yml
@@ -14,6 +14,6 @@ jobs:
   ValidatePrTitle:
     runs-on: ubuntu-latest
     steps:
-      - uses: amannn/action-semantic-pull-request@v5
+      - uses: amannn/action-semantic-pull-request@e32d7e603df1aa1ba07e981f2a23455dee596825 # v5
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index ccbe24a..4dae7e5 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4
         with:
           ref: ${{ github.event.pull_request.head.sha || github.ref }}
 
@@ -64,7 +64,7 @@ jobs:
           Write-Host "Testing source archive pinned to $env:HEAD_SHA"
 
       - name: Setup Tooling
-        uses: oven-sh/setup-bun@v2
+        uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2
         with:
           bun-version: 1.3.2