diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9c1a8054..7bcb7dea 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,10 +13,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Setup Nodejs
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 20
 
@@ -27,7 +27,7 @@ jobs:
         run: export DISPLAY=:99.0
 
       - name: Install Ruby
-        uses: ruby/setup-ruby@v1
+        uses: ruby/setup-ruby@97ecb7b512899eb71ab1bf2310a624c6f1589ac6 # v1.308.0
         with:
           ruby-version: 2.7.8
 
@@ -38,15 +38,15 @@ jobs:
         run: bundle install
 
       - name: Install Firefox
-        uses: browser-actions/setup-firefox@v1
+        uses: browser-actions/setup-firefox@0bc507ddf224827e3b1af68e014d5e42ab93e795 # v1.7.2
 
       - name: Run Gulp
-        uses: GabrielBB/xvfb-action@v1
+        uses: GabrielBB/xvfb-action@86d97bde4a65fe9b290c0b3fb92c2c4ed0e5302d # v1.6
         with:
           run: gulp default --ci
 
       - name: Run Code Coverage
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@b9fd7d16f6d7d1b5d2bec1a2887e65ceed900238 # v4.6.0
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: true
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
index f3ae17e0..68538174 100644
--- a/.github/workflows/npm-publish.yml
+++ b/.github/workflows/npm-publish.yml
@@ -10,11 +10,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
         with:
           fetch-depth: 0
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version-file: '.nvmrc'
       - name: Install dependencies