diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2e76c5e..5a7b327 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
       matrix:
         node: [18, 20, 22]
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 036ab21..ec1bef7 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -17,7 +17,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with: { node-version: '20', cache: 'npm' }
       - run: npm ci
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5dc6659..3946e30 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ jobs:
       contents: write
       id-token: write
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version: 20
diff --git a/.github/workflows/spec-drift.yml b/.github/workflows/spec-drift.yml
index ea3e9f3..b480000 100644
--- a/.github/workflows/spec-drift.yml
+++ b/.github/workflows/spec-drift.yml
@@ -14,7 +14,7 @@ jobs:
       pull-requests: write
       issues: write
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
           node-version: 20