diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 00000000..2c48305b
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,11 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    groups:
+      github-actions:
+        patterns: ["*"]
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 3f7afe35..85ff4783 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -11,13 +11,13 @@ jobs:
 
     steps:
     - name: Check out Git repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
     - name: Install ClangFormat
       run: sudo apt-get install -y clang-format
 
     - name: Set up Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
       with:
         python-version: '3.12'
 
@@ -32,7 +32,7 @@ jobs:
 
     steps:
     - name: Check out Git repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
     - name: Download misspell
       run: |
diff --git a/.github/workflows/ut.yml b/.github/workflows/ut.yml
index 1be09faf..5b333ec7 100644
--- a/.github/workflows/ut.yml
+++ b/.github/workflows/ut.yml
@@ -43,7 +43,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
       - name: Dubious ownership exception
         run: |