diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 76f934c..e944a5f 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Setup .NET
       uses: actions/setup-dotnet@v4
diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index 1bdac83..d19b2aa 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -33,7 +33,7 @@ jobs:
           OUTPUTDIR: spamfilter-win-x64
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v6
     - name: Setup .NET Core
       uses: actions/setup-dotnet@v1
       with:
diff --git a/.github/workflows/sonar.yml b/.github/workflows/sonar.yml
index b7939bd..891ecfb 100644
--- a/.github/workflows/sonar.yml
+++ b/.github/workflows/sonar.yml
@@ -20,7 +20,7 @@ jobs:
         uses: actions/setup-java@v1
         with:
           java-version: 1.11
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
       - name: Cache SonarCloud packages