diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 8c6f394..e536d97 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -36,7 +36,7 @@ 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/endtoend.yaml b/.github/workflows/endtoend.yaml
index 6a3d2ff..c1e724c 100644
--- a/.github/workflows/endtoend.yaml
+++ b/.github/workflows/endtoend.yaml
@@ -15,7 +15,7 @@ jobs:
         ignore: [false, true]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 8cad7c5..0460e6e 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -9,14 +9,14 @@ jobs:
   black:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
       - uses: psf/black@main
   mypy:
     runs-on: ubuntu-latest
     name: Mypy
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.13.1"
@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     name: poetry check
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.12.3"
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index bac9487..9f654c1 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -7,7 +7,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.13.1"