diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 640d728..bebb56b 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -50,7 +50,7 @@ jobs:
 
     steps:
       - name: Get source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/linter.yml b/.github/workflows/linter.yml
index 4472bdc..c95d3e3 100644
--- a/.github/workflows/linter.yml
+++ b/.github/workflows/linter.yml
@@ -30,7 +30,7 @@ jobs:
       options: --user root
     steps:
       - name: Get source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Check PyQt5 to PyQt6 compatibility.
         run: |
diff --git a/.github/workflows/package_and_release.yml b/.github/workflows/package_and_release.yml
index 0d935ec..80fd1bb 100644
--- a/.github/workflows/package_and_release.yml
+++ b/.github/workflows/package_and_release.yml
@@ -31,7 +31,7 @@ jobs:
 
     steps:
       - name: Get source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Python
         uses: actions/setup-python@v6
@@ -69,7 +69,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Python
         uses: actions/setup-python@v6
@@ -131,7 +131,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Python
         uses: actions/setup-python@v6