diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index e0f8c83b..02a965ce 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -37,7 +37,7 @@ jobs:
 
     steps:
       - name: Check out code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
         with:
           fetch-depth: 0 # need to checkout "all commits" for certain features to work (e.g., get all changed files)
 
@@ -106,7 +106,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
       - name: Unit tests
         uses: ./.github/actions/unit-tests
 
@@ -122,7 +122,7 @@ jobs:
       DATETIME: ${{ needs.prepare_ci_run.outputs.DATETIME }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Load CI Environment from .ci_env
         id: load_ci_env
@@ -179,7 +179,7 @@ jobs:
       DATETIME: ${{ needs.prepare_ci_run.outputs.DATETIME }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Load CI Environment from .ci_env
         id: load_ci_env
@@ -210,7 +210,7 @@ jobs:
       VERSION: ${{ needs.prepare_ci_run.outputs.VERSION }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Set up Go
         uses: actions/setup-go@v3.3.1
diff --git a/.github/workflows/integration-tests.yaml b/.github/workflows/integration-tests.yaml
index 632a8cce..33fef42a 100644
--- a/.github/workflows/integration-tests.yaml
+++ b/.github/workflows/integration-tests.yaml
@@ -19,7 +19,7 @@ jobs:
       LATEST_KEPTN_PRERELEASE: ${{ steps.prepare_keptn_version_matrix.outputs.LATEST_PRERELEASE }}
     steps:
       - name: Check out code.
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Prepare Keptn version matrix
         id: prepare_keptn_version_matrix
@@ -49,7 +49,7 @@ jobs:
     steps:
       # Checkout code for the integrations tests in test/e2e
       - name: Check out code.
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Setup Go
         uses: actions/setup-go@v3.3.1
diff --git a/.github/workflows/pre-release.yml b/.github/workflows/pre-release.yml
index 47dff15d..96339ec0 100644
--- a/.github/workflows/pre-release.yml
+++ b/.github/workflows/pre-release.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
       - name: Unit tests
         uses: ./.github/actions/unit-tests
 
@@ -23,7 +23,7 @@ jobs:
       VERSION: ${{ needs.pre-release.outputs.RELEASE_TAG }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Load CI Environment from .ci_env
         id: load_ci_env
@@ -64,7 +64,7 @@ jobs:
       VERSION: ${{ needs.pre-release.outputs.RELEASE_TAG }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Load CI Environment from .ci_env
         id: load_ci_env
@@ -95,7 +95,7 @@ jobs:
       VERSION: ${{ needs.pre-release.outputs.RELEASE_TAG }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Run make
         run: make build-lint
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b4f9c644..0133728c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
       - name: Unit tests
         uses: ./.github/actions/unit-tests
 
@@ -23,7 +23,7 @@ jobs:
       VERSION: ${{ needs.release.outputs.RELEASE_TAG }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Load CI Environment from .ci_env
         id: load_ci_env
@@ -64,7 +64,7 @@ jobs:
       VERSION: ${{ needs.release.outputs.RELEASE_TAG }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Load CI Environment from .ci_env
         id: load_ci_env
@@ -95,7 +95,7 @@ jobs:
       VERSION: ${{ needs.release.outputs.RELEASE_TAG }}
     steps:
       - name: Checkout Code
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: Run make
         run: make build-lint
diff --git a/.github/workflows/reviewdog.yml b/.github/workflows/reviewdog.yml
index 9d5fbde8..d9d0c4a8 100644
--- a/.github/workflows/reviewdog.yml
+++ b/.github/workflows/reviewdog.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code.
-        uses: actions/checkout@v3.1.0
+        uses: actions/checkout@v3.5.0
 
       - name: golangci-lint
         uses: reviewdog/action-golangci-lint@v2