diff --git a/.github/workflows/autofix.yml b/.github/workflows/autofix.yml
index 6f7d4dd..53b80cc 100644
--- a/.github/workflows/autofix.yml
+++ b/.github/workflows/autofix.yml
@@ -5,9 +5,9 @@ jobs:
   autofix:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - run: npm i -fg corepack && corepack enable
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
         with: { node-version: lts/*, cache: "pnpm" }
       - run: pnpm install
       - run: pnpm fmt
diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index fee96e1..e3b35a4 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -4,13 +4,13 @@ jobs:
   checks:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - run: npm i -fg corepack && corepack enable
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
         with: { node-version: lts/*, cache: "pnpm" }
       - run: pnpm install
       - run: pnpm typecheck
       - run: pnpm vitest --coverage
       - run: pnpm run lint
-      - uses: codecov/codecov-action@v6
+      - uses: codecov/codecov-action@e79a6962e0d4c0c17b229090214935d2e33f8354 # v6
         with: { token: "${{ secrets.CODECOV_TOKEN }}" }
diff --git a/.github/workflows/ecosystem.yml b/.github/workflows/ecosystem.yml
index 5484bbc..f750611 100644
--- a/.github/workflows/ecosystem.yml
+++ b/.github/workflows/ecosystem.yml
@@ -7,9 +7,9 @@ jobs:
   http-proxy-middleware:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - run: npm i -fg corepack && corepack enable
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
         with: { node-version: lts/*, cache: "pnpm" }
       - run: pnpm install
       - run: pnpm test:ecosystem http-proxy-middleware