diff --git a/.github/workflows/build_tests.yml b/.github/workflows/build_tests.yml
index 448925b..86319e2 100644
--- a/.github/workflows/build_tests.yml
+++ b/.github/workflows/build_tests.yml
@@ -7,7 +7,7 @@ jobs:
   build_tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.head_ref }}
       - name: Setup Python
diff --git a/.github/workflows/dev2master.yml b/.github/workflows/dev2master.yml
index cc76fee..8dc0c67 100644
--- a/.github/workflows/dev2master.yml
+++ b/.github/workflows/dev2master.yml
@@ -8,7 +8,7 @@ jobs:
   build_and_publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # otherwise, there would be errors pushing refs to the destination repository.
           ref: dev
diff --git a/.github/workflows/docker_tests.yml b/.github/workflows/docker_tests.yml
index d9a9a92..9e22c83 100644
--- a/.github/workflows/docker_tests.yml
+++ b/.github/workflows/docker_tests.yml
@@ -7,7 +7,7 @@ jobs:
   docker_build_tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.head_ref }}
       - uses: docker-practice/actions-setup-docker@master
diff --git a/.github/workflows/publish_docker.yml b/.github/workflows/publish_docker.yml
index 7579ea6..757efd9 100644
--- a/.github/workflows/publish_docker.yml
+++ b/.github/workflows/publish_docker.yml
@@ -14,7 +14,7 @@ jobs:
       packages: write
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.ref }}