diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ebc2bb1f..0963e478 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,7 +17,7 @@ jobs:
           - ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
 
       - name: Install dependencies
         run: yarn --frozen-lockfile
@@ -26,7 +26,7 @@ jobs:
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@1a9e2138d905efd099035b49d8b7a3888c653ca8
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 000c3ee9..9b9e59a2 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -17,12 +17,12 @@ jobs:
         language: [javascript]
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v1
+        uses: github/codeql-action/init@21830ef0c1f0f06f2d82ba3f1f07cb3ffe543ed7
         with:
           languages: ${{ matrix.language }}
 
       - name: Perform CodeQL analysis
-        uses: github/codeql-action/analyze@v1
+        uses: github/codeql-action/analyze@21830ef0c1f0f06f2d82ba3f1f07cb3ffe543ed7
diff --git a/.github/workflows/electronegativity.yml b/.github/workflows/electronegativity.yml
index b0962aed..9eeba3c4 100644
--- a/.github/workflows/electronegativity.yml
+++ b/.github/workflows/electronegativity.yml
@@ -7,17 +7,17 @@ on:
     branches:
       - master
 jobs:
-  build_job:
+  run-electronegativity:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
 
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@1a9e2138d905efd099035b49d8b7a3888c653ca8
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
@@ -33,6 +33,6 @@ jobs:
           yarn run electronegativity -r -i . -o ../results/out.sarif
 
       - name: Upload sarif
-        uses: github/codeql-action/upload-sarif@v1
+        uses: github/codeql-action/upload-sarif@21830ef0c1f0f06f2d82ba3f1f07cb3ffe543ed7
         with:
           sarif_file: ../results
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 1fd83381..16ed6fbf 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -11,13 +11,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
 
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@1a9e2138d905efd099035b49d8b7a3888c653ca8
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
diff --git a/.github/workflows/misspell.yml b/.github/workflows/misspell.yml
index 26d7b09a..fe915213 100644
--- a/.github/workflows/misspell.yml
+++ b/.github/workflows/misspell.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
 
       - name: Install misspell
         run: curl -L https://git.io/misspell | bash
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 03378136..341ce802 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -8,13 +8,13 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
 
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@1a9e2138d905efd099035b49d8b7a3888c653ca8
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
diff --git a/.github/workflows/release-draft.yml b/.github/workflows/release-drafter.yml
similarity index 82%
rename from .github/workflows/release-draft.yml
rename to .github/workflows/release-drafter.yml
index e0695b28..628d5dc6 100644
--- a/.github/workflows/release-draft.yml
+++ b/.github/workflows/release-drafter.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Release draft
-        uses: release-drafter/release-drafter@v5
+        uses: release-drafter/release-drafter@fe52e97d262833ae07d05efaf1a239df3f1b5cd4
         id: release-draft
         env:
           GITHUB_TOKEN: ${{ secrets.GH_PAT }}
@@ -20,7 +20,7 @@ jobs:
     needs: release-draft
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
 
       - name: Update package.json
         run: |
@@ -35,7 +35,7 @@ jobs:
           VERSION: ${{ needs.release-draft.outputs.version }}
 
       - name: Create pull request
-        uses: peter-evans/create-pull-request@v3
+        uses: peter-evans/create-pull-request@01f7dd1d28f5131231ba3ede0f1c8cb413584a1d
         with:
           branch: ${{ needs.release-draft.outputs.version }}
           delete-branch: true
diff --git a/.github/workflows/source-map.yml b/.github/workflows/source-map.yml
index 18b25994..318f1a98 100644
--- a/.github/workflows/source-map.yml
+++ b/.github/workflows/source-map.yml
@@ -8,13 +8,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
 
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@1a9e2138d905efd099035b49d8b7a3888c653ca8
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
@@ -32,7 +32,7 @@ jobs:
         run: echo ::set-output name=version::${GITHUB_REF/refs\/tags\//}
 
       - name: Upload source map
-        uses: getsentry/action-release@v1
+        uses: getsentry/action-release@641a80f3e05619b174bcacbfa3b69dff382d2a33
         with:
           url_prefix: ~/dist
           sourcemaps: dist
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 663cf78c..1ac588a4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,13 +11,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
 
       - name: Get yarn cache directory path
         id: yarn-cache-dir-path
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@1a9e2138d905efd099035b49d8b7a3888c653ca8
         with:
           path: ${{ steps.yarn-cache-dir-path.outputs.dir }}
           key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
@@ -31,7 +31,7 @@ jobs:
         run: yarn test
 
       - name: Publish code coverage
-        uses: paambaati/codeclimate-action@v2.7.5
+        uses: paambaati/codeclimate-action@7bcf9e73c0ee77d178e72c0ec69f1a99c1afc1f3
         if: ${{ env.CC_TEST_REPORTER_ID != '' }}
         env:
           CC_TEST_REPORTER_ID: ${{ secrets.CC_TEST_REPORTER_ID }}