diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b4be105..a514b32 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,11 +15,11 @@ jobs:
     name: Lint, Typecheck, Test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@02f6c237bd2518259fed6c71566509edfb3f2b74 # v4
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
         with:
           node-version: 20
           cache: pnpm
@@ -34,11 +34,11 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@02f6c237bd2518259fed6c71566509edfb3f2b74 # v4
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
         with:
           node-version: 20
           cache: pnpm
@@ -52,7 +52,7 @@ jobs:
       - run: npm pack
 
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: npm-package
           path: |
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4fb691a..0b50555 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -26,25 +26,25 @@ jobs:
     steps:
       - name: Get auth token
         id: token
-        uses: actions/create-github-app-token@v2
+        uses: actions/create-github-app-token@fee1f7d63c2ff003460e3d139729b119787bc349 # v2
         with:
           app-id: ${{ vars.SENTRY_RELEASE_BOT_CLIENT_ID }}
           private-key: ${{ secrets.SENTRY_RELEASE_BOT_PRIVATE_KEY }}
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
           token: ${{ steps.token.outputs.token }}
           fetch-depth: 0
 
-      - uses: pnpm/action-setup@v4
+      - uses: pnpm/action-setup@02f6c237bd2518259fed6c71566509edfb3f2b74 # v4
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
         with:
           node-version: 20
           cache: pnpm
 
       - name: Prepare release
-        uses: getsentry/craft@v2
+        uses: getsentry/craft@f4889d04564e47311038ecb6b910fef6b6cf1363 # v2
         env:
           GITHUB_TOKEN: ${{ steps.token.outputs.token }}
         with:
diff --git a/.github/workflows/warden.yml b/.github/workflows/warden.yml
index 89f9837..10bdce4 100644
--- a/.github/workflows/warden.yml
+++ b/.github/workflows/warden.yml
@@ -15,15 +15,15 @@ jobs:
       WARDEN_MODEL: ${{ secrets.WARDEN_MODEL }}
       WARDEN_SENTRY_DSN: ${{ secrets.WARDEN_SENTRY_DSN }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
-      - uses: actions/create-github-app-token@v1
+      - uses: actions/create-github-app-token@d72941d797fd3113feb6b93fd0dec494b13a2547 # v1
         id: app-token
         with:
           app-id: ${{ secrets.WARDEN_APP_ID }}
           private-key: ${{ secrets.WARDEN_PRIVATE_KEY }}
 
-      - uses: getsentry/warden@v0
+      - uses: getsentry/warden@34257abaeda3b030eb45a0971060d509ce0fea51 # v0
         with:
           anthropic-api-key: ${{ secrets.WARDEN_ANTHROPIC_API_KEY }}
           github-token: ${{ steps.app-token.outputs.token }}