diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 86a6414..5c4c585 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,11 +7,15 @@ on:
   release:
     types: [ released ]
 
+permissions: {}
+
 jobs:
   linting:
+    permissions:
+      contents: read
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Install uv
         uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
         with:
@@ -24,6 +28,8 @@ jobs:
         run: uv run pre-commit run --all-files
 
   test-app:
+    permissions:
+      contents: read
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -33,7 +39,7 @@ jobs:
       run: docker network create ganache
     - name: Setup and run ganache
       run: docker run --detach --publish 8545:8545 --network ganache -e DOCKER=true trufflesuite/ganache:latest --defaultBalanceEther 10000 --gasLimit 10000000 -a 30 --chain.chainId 1337 --chain.networkId 1337 -d
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
     - name: Install uv
       uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
       with:
@@ -48,28 +54,32 @@ jobs:
         uv run coverage combine
         uv run coverage lcov -o coverage.lcov
     - name: Coveralls Parallel
-      uses: coverallsapp/github-action@5cbfd81b66ca5d10c19b062c04de0199c215fb6e # v2
+      uses: coverallsapp/github-action@648a8eb78e6d50909eff900e4ec85cab4524a45b # v2.3.6
       with:
         file: coverage.lcov
         flag-name: run-${{ matrix.python-version }}
         parallel: true
 
   finish:
+    permissions:
+      contents: read
     needs: test-app
     if: ${{ always() }}
     runs-on: ubuntu-latest
     steps:
     - name: Coveralls Finished
-      uses: coverallsapp/github-action@5cbfd81b66ca5d10c19b062c04de0199c215fb6e # v2
+      uses: coverallsapp/github-action@648a8eb78e6d50909eff900e4ec85cab4524a45b # v2.3.6
       with:
         parallel-finished: true
 
   publish:
+    permissions:
+      contents: read
     runs-on: ubuntu-latest
     needs: test-app
     if: github.event_name == 'release' && github.event.action == 'released'
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
     - name: Install uv
       uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
       with:
@@ -82,22 +92,24 @@ jobs:
         UV_PUBLISH_PASSWORD: ${{ secrets.PYPI_TOKEN }}
 
   docker-deploy:
+    permissions:
+      contents: read
     runs-on: ubuntu-latest
     needs: test-app
     if: github.event_name == 'release' && github.event.action == 'released'
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
-    - uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4
+    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+    - uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a # v4.0.0
       with:
         platforms: arm64
-    - uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
+    - uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
     - name: Dockerhub login
-      uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4
+      uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
       with:
         username: ${{ secrets.DOCKER_USER }}
         password: ${{ secrets.DOCKER_PASSWORD }}
     - name: Deploy Tag
-      uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7
+      uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
       with:
         context: .
         file: Dockerfile
diff --git a/.github/workflows/cla.yml b/.github/workflows/cla.yml
index fd4dbde..2b3c1a8 100644
--- a/.github/workflows/cla.yml
+++ b/.github/workflows/cla.yml
@@ -5,8 +5,12 @@ on:
   pull_request_target:
     types: [ opened,closed,synchronize ]
 
+permissions: {}
+
 jobs:
   CLAssistant:
+    permissions:
+      contents: read
     runs-on: ubuntu-latest
     steps:
       - name: "CLA Assistant"