diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index bcb57d3..9c9b0fe 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -27,7 +27,7 @@ jobs:
   quality:
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-java@v4
         with:
@@ -79,7 +79,7 @@ jobs:
     name: compile (${{ matrix.name }})
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-java@v4
         with:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 0a1b480..6ba617f 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -30,7 +30,7 @@ jobs:
       actions: read
       contents: read
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-java@v4
         with:
diff --git a/.github/workflows/dependency-submission.yml b/.github/workflows/dependency-submission.yml
index 73ada8b..98193b7 100644
--- a/.github/workflows/dependency-submission.yml
+++ b/.github/workflows/dependency-submission.yml
@@ -34,7 +34,7 @@ jobs:
   submit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-java@v4
         with:
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 0af29a3..bed4bed 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -24,7 +24,7 @@ jobs:
       run:
         working-directory: website
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - uses: pnpm/action-setup@v4
         with:
           version: 10
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index cd29603..de69e46 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -30,7 +30,7 @@ jobs:
     # ubuntu ships Docker, which the local Supabase stack needs.
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-java@v4
         with:
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index fe9bfb3..939aacb 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -14,7 +14,7 @@ jobs:
   publish:
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-java@v4
         with:
diff --git a/.github/workflows/release-attestations.yml b/.github/workflows/release-attestations.yml
index 8a75dc2..dba5908 100644
--- a/.github/workflows/release-attestations.yml
+++ b/.github/workflows/release-attestations.yml
@@ -18,7 +18,7 @@ jobs:
   attest:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-java@v4
         with:
diff --git a/.github/workflows/spec-drift.yml b/.github/workflows/spec-drift.yml
index cd9cab8..6daf8e7 100644
--- a/.github/workflows/spec-drift.yml
+++ b/.github/workflows/spec-drift.yml
@@ -37,7 +37,7 @@ jobs:
     name: Coverage manifest in sync with pinned spec
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - uses: actions/setup-python@v5
         with:
@@ -55,7 +55,7 @@ jobs:
     # Don't fail the PR build for upstream drift; this is a signal, not a gate.
     continue-on-error: true
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Install oasdiff
         run: |
diff --git a/.github/workflows/supply-chain.yml b/.github/workflows/supply-chain.yml
index 959e9e2..f6487b7 100644
--- a/.github/workflows/supply-chain.yml
+++ b/.github/workflows/supply-chain.yml
@@ -28,7 +28,7 @@ jobs:
   wrapper-validation:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: Validate Gradle wrapper
         uses: gradle/actions/wrapper-validation@v4
 
@@ -39,7 +39,7 @@ jobs:
     if: github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - name: Dependency review
         uses: actions/dependency-review-action@v5
         with: