diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 9fa25e4..7da8de8 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -27,7 +27,7 @@ jobs:
     if: github.event.repository.visibility == 'public'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: github/codeql-action/init@v3
         with:
           languages: python
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 7c7dfe4..f8af146 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -24,7 +24,7 @@ jobs:
     # venv, which is both faster and avoids ensurepip flakiness.
     runs-on: macos-14
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: astral-sh/setup-uv@v5
         with:
           enable-cache: true
@@ -37,7 +37,7 @@ jobs:
     # key needed for public repos.
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - name: gitleaks
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index ef7e59e..a6f309d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -22,7 +22,7 @@ jobs:
   lint:
     runs-on: macos-14
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: astral-sh/setup-uv@v5
         with:
           enable-cache: true
@@ -39,7 +39,7 @@ jobs:
       matrix:
         python: ["3.11", "3.12", "3.13"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: astral-sh/setup-uv@v5
         with:
           enable-cache: true
@@ -57,7 +57,7 @@ jobs:
     # it into a lock-free venv, then confirm the console script resolves.
     runs-on: macos-14
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: astral-sh/setup-uv@v5
         with:
           enable-cache: true
@@ -74,7 +74,7 @@ jobs:
     # so it runs on a cheap linux runner.
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: astral-sh/setup-uv@v5
       - name: Lockfile is up to date
         run: uv lock --check