diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 73c6402..804c587 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
     name: Lint (ruff + black)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"
@@ -29,7 +29,7 @@ jobs:
     name: Type-check (mypy)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"
@@ -45,7 +45,7 @@ jobs:
       matrix:
         python: ["3.10", "3.11", "3.12"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python }}
@@ -65,7 +65,7 @@ jobs:
       run:
         working-directory: extension
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v4
         with:
           node-version: "20"
@@ -82,7 +82,7 @@ jobs:
     name: Security (pip-audit)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 074c5bd..36ba012 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -21,7 +21,7 @@ jobs:
       matrix:
         language: [python, javascript]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: github/codeql-action/init@v3
         with:
           languages: ${{ matrix.language }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d429632..8a279e0 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,7 +11,7 @@ jobs:
   build-release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"