diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
index 394b4b1..4ebefcb 100644
--- a/.github/workflows/audit.yml
+++ b/.github/workflows/audit.yml
@@ -42,7 +42,7 @@ jobs:
       issues: write
       checks: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: rustsec/audit-check@v2.0.0
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
@@ -52,7 +52,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v6
         with:
           node-version: '20'
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index f9768f3..c7abbbb 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -25,7 +25,7 @@ jobs:
       name: github-pages
       url: ${{ steps.deploy.outputs.page_url }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: DeterminateSystems/nix-installer-action@main
 
diff --git a/.github/workflows/flake-update.yml b/.github/workflows/flake-update.yml
index 23fbced..cb7744a 100644
--- a/.github/workflows/flake-update.yml
+++ b/.github/workflows/flake-update.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 20
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: DeterminateSystems/nix-installer-action@main
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 3886b3d..993a837 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 20
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       # Nix gets us pinned versions of Rust + worker-build + wrangler so
       # the wasm build behaves identically to the local devShell.