diff --git a/.github/workflows/close-stale-prs.yml b/.github/workflows/close-stale-prs.yml
index 71032c7..603566c 100644
--- a/.github/workflows/close-stale-prs.yml
+++ b/.github/workflows/close-stale-prs.yml
@@ -11,7 +11,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/stale@v9
+    - uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639 # v9.1.0
       with:
         stale-pr-message: This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days.
         close-pr-message: This PR was closed because it has been inactive for 7 days.
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index a65d43f..b41f34d 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -23,16 +23,16 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@1b549b9259bda1cb5ddde3b41741a82a2d15a841 # v3.28.13
 
       # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
       # If this step fails, then you should remove it and run the build manually (see below)
       - name: Autobuild
-        uses: github/codeql-action/autobuild@v3
+        uses: github/codeql-action/autobuild@1b549b9259bda1cb5ddde3b41741a82a2d15a841 # v3.28.13
 
       # ℹ️ Command-line programs to run using the OS shell.
       # 📚 https://git.io/JvXDl
@@ -42,4 +42,4 @@ jobs:
       #    uses a compiled language
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@1b549b9259bda1cb5ddde3b41741a82a2d15a841 # v3.28.13