diff --git a/.github/workflows/backend-tests.yml b/.github/workflows/backend-tests.yml
index cfa04a2..84454e2 100644
--- a/.github/workflows/backend-tests.yml
+++ b/.github/workflows/backend-tests.yml
@@ -39,7 +39,7 @@ jobs:
           - 6379:6379
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/build-docker-backend.yml b/.github/workflows/build-docker-backend.yml
index e505065..e17bc68 100644
--- a/.github/workflows/build-docker-backend.yml
+++ b/.github/workflows/build-docker-backend.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
diff --git a/.github/workflows/build-docker-proxy.yml b/.github/workflows/build-docker-proxy.yml
index 9d0b1c6..0b36838 100644
--- a/.github/workflows/build-docker-proxy.yml
+++ b/.github/workflows/build-docker-proxy.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
diff --git a/.github/workflows/build-docker-simulator.yml b/.github/workflows/build-docker-simulator.yml
index 6872b8a..d04d1cb 100644
--- a/.github/workflows/build-docker-simulator.yml
+++ b/.github/workflows/build-docker-simulator.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
diff --git a/.github/workflows/build-docker-web.yml b/.github/workflows/build-docker-web.yml
index 5dd1360..c25aea8 100644
--- a/.github/workflows/build-docker-web.yml
+++ b/.github/workflows/build-docker-web.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
diff --git a/.github/workflows/build-web.yml b/.github/workflows/build-web.yml
index 049b44b..f2c8112 100644
--- a/.github/workflows/build-web.yml
+++ b/.github/workflows/build-web.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup nodejs
         uses: actions/setup-node@v4
diff --git a/.github/workflows/e2e-tests.yml b/.github/workflows/e2e-tests.yml
index 1a1bba6..c27cb37 100644
--- a/.github/workflows/e2e-tests.yml
+++ b/.github/workflows/e2e-tests.yml
@@ -34,7 +34,7 @@ jobs:
           - 6379:6379
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/frontend-tests.yml b/.github/workflows/frontend-tests.yml
index aaab527..9bee1e0 100644
--- a/.github/workflows/frontend-tests.yml
+++ b/.github/workflows/frontend-tests.yml
@@ -16,7 +16,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Set up Node.js
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/lint-dockerfiles.yml b/.github/workflows/lint-dockerfiles.yml
index 16f69a5..38be3d3 100644
--- a/.github/workflows/lint-dockerfiles.yml
+++ b/.github/workflows/lint-dockerfiles.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Run hadolint on backend
         uses: hadolint/hadolint-action@v3.1.0
diff --git a/.github/workflows/lint-python.yml b/.github/workflows/lint-python.yml
index 87ab6ac..78fc0e1 100644
--- a/.github/workflows/lint-python.yml
+++ b/.github/workflows/lint-python.yml
@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 89b9d7c..4bd1fcd 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,7 +10,7 @@ jobs:
   backend-lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
@@ -32,7 +32,7 @@ jobs:
   simulator-lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
@@ -54,7 +54,7 @@ jobs:
   frontend-lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node.js
         uses: actions/setup-node@v4
@@ -104,7 +104,7 @@ jobs:
           - 6379:6379
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
@@ -147,7 +147,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node.js
         uses: actions/setup-node@v4
@@ -194,7 +194,7 @@ jobs:
           - 6379:6379
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
@@ -365,7 +365,7 @@ jobs:
     needs: [backend-tests, frontend-tests, e2e-tests, simulator-lint]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6