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/defaultLabels.yml b/.github/workflows/defaultLabels.yml
index 3282c9f4..18b63090 100644
--- a/.github/workflows/defaultLabels.yml
+++ b/.github/workflows/defaultLabels.yml
@@ -26,7 +26,7 @@ jobs:
 #           days-before-close: -1
 #           operations-per-run: 100
           
-      - uses: actions/stale@v3
+      - uses: actions/stale@98ed4cb500039dbcccf4bd9bedada4d0187f2757 # v3.0.19
         name: Setting issue as idle
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
@@ -37,7 +37,7 @@ jobs:
           operations-per-run: 100
           exempt-issue-labels: 'backlog'
           
-      - uses: actions/stale@v3
+      - uses: actions/stale@98ed4cb500039dbcccf4bd9bedada4d0187f2757 # v3.0.19
         name: Setting PR as idle
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index db2c3495..78d92638 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -58,7 +58,7 @@ jobs:
       run: npm ci --ignore-scripts && npm run build
 
     - name: Setup .NET
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9 # v4.3.1
       with:
         dotnet-version: '10.x'