diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c240772..bfeae36 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,7 +33,7 @@ jobs:
         python-version: ${{ fromJson(needs.configure.outputs.environments).python-version }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up project
         uses: ./.github/actions/setup-project
         with:
@@ -66,7 +66,7 @@ jobs:
         python-version: ${{ fromJson(needs.configure.outputs.environments).python-version }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up project
         uses: ./.github/actions/setup-project
         with:
@@ -92,7 +92,7 @@ jobs:
       contents: write
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up project
         uses: ./.github/actions/setup-project
         with:
@@ -140,7 +140,7 @@ jobs:
       - tests
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up project
         uses: ./.github/actions/setup-project
         with:
@@ -165,7 +165,7 @@ jobs:
       contents: write
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up project
         uses: ./.github/actions/setup-project
         with:
diff --git a/.github/workflows/configure.yml b/.github/workflows/configure.yml
index decfb21..17a56e7 100644
--- a/.github/workflows/configure.yml
+++ b/.github/workflows/configure.yml
@@ -18,7 +18,7 @@ jobs:
       environments: ${{ steps.set-environments.outputs.environments }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set environments
         id: set-environments
         run: echo "environments=$(jq -c . < ./.github/environments.json)" >> $GITHUB_OUTPUT
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 6f89db2..cf7f0c6 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -22,7 +22,7 @@ jobs:
         python-version: ${{ fromJson(inputs.environments).python-version }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up project
         uses: ./.github/actions/setup-project
         with: