diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index d309395..dfb4dcf 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -39,7 +39,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index ed43f33..54b7dcc 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Annotate locations with typos
         uses: codespell-project/codespell-problem-matcher@v1
       - name: Codespell
diff --git a/.github/workflows/docker-build-latest.yml b/.github/workflows/docker-build-latest.yml
index ec1d53e..87bae44 100644
--- a/.github/workflows/docker-build-latest.yml
+++ b/.github/workflows/docker-build-latest.yml
@@ -20,7 +20,7 @@ jobs:
           versionSpec: '5.x'
 
       - name: Install Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.head_ref }}   # checkout the correct branch name
           fetch-depth: 0
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index f059d15..7a1520e 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/showversion.yml b/.github/workflows/showversion.yml
index 8c59e17..9eb9ddb 100644
--- a/.github/workflows/showversion.yml
+++ b/.github/workflows/showversion.yml
@@ -17,7 +17,7 @@ jobs:
           versionSpec: '5.x'
 
       - name: Install Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.head_ref }}   # checkout the correct branch name
           fetch-depth: 0