diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1726ba4..6a976c1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Java 25
         uses: actions/setup-java@v5
@@ -54,7 +54,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Node.js 22
         uses: actions/setup-node@v6
@@ -85,7 +85,7 @@ jobs:
     needs: [backend-unit-tests, frontend-unit-tests]
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Java 25
         uses: actions/setup-java@v5
@@ -122,7 +122,7 @@ jobs:
       - integration-tests
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Java 25
         uses: actions/setup-java@v5
@@ -259,7 +259,7 @@ jobs:
     if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Java 25
         uses: actions/setup-java@v5
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 5ddc60e..5558c19 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Set up Java 25
         if: matrix.language == 'java-kotlin'
diff --git a/.github/workflows/dco.yml b/.github/workflows/dco.yml
index dbbf0e9..1f60632 100644
--- a/.github/workflows/dco.yml
+++ b/.github/workflows/dco.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0