diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 18ad1d29..98b0d029 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,15 +12,15 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2
+      - uses: actions/setup-python@e9aba2c848f5ebd159c070c61ea2c4e2b122355e # v2
         with:
           python-version: 3.9
 
       - run: |
           pip install wheel
           python setup.py bdist_wheel sdist --formats=gztar
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: ${{ github.sha }}
           path: dist/*
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3225254a..358a6a31 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
     - name: Install dependencies
       run: |
         python -m pip install tox
@@ -37,11 +37,11 @@ jobs:
 
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
       with:
         fetch-depth: 1
 
-    - uses: actions/setup-python@v4
+    - uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c # v4
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -58,4 +58,4 @@ jobs:
 
     - name: Code Coverage Report
       if: success()
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@ab904c41d6ece82784817410c45d8b8c02684457 # v3
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 821650c0..97b84153 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -24,11 +24,11 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
+      uses: github/codeql-action/init@8dca8a82e2fa1a2c8908956f711300f9c4a4f4f6 # v2
       with:
         languages: ${{ matrix.language }}
 
@@ -36,7 +36,7 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, Go, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
+      uses: github/codeql-action/autobuild@8dca8a82e2fa1a2c8908956f711300f9c4a4f4f6 # v2
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
@@ -49,6 +49,6 @@ jobs:
     #     ./location_of_script_within_repo/buildscript.sh
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2
+      uses: github/codeql-action/analyze@8dca8a82e2fa1a2c8908956f711300f9c4a4f4f6 # v2
       with:
         category: "/language:${{matrix.language}}"
diff --git a/.github/workflows/enforce-license-compliance.yml b/.github/workflows/enforce-license-compliance.yml
index f6afabd4..c6730122 100644
--- a/.github/workflows/enforce-license-compliance.yml
+++ b/.github/workflows/enforce-license-compliance.yml
@@ -11,6 +11,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Enforce License Compliance'
-        uses: getsentry/action-enforce-license-compliance@main
+        uses: getsentry/action-enforce-license-compliance@48236a773346cb6552a7bda1ee370d2797365d87 # main
         with:
           fossa_api_key: ${{ secrets.FOSSA_API_KEY }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 557c725b..25aab7d1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -26,7 +26,7 @@ jobs:
           app-id: ${{ vars.SENTRY_RELEASE_BOT_CLIENT_ID }}
           private-key: ${{ secrets.SENTRY_RELEASE_BOT_PRIVATE_KEY }}
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2
         with:
           token: ${{ steps.token.outputs.token }}
           fetch-depth: 0