diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5c9e46938..c48286c92 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Run external tests
         run: npx gulp externaltest
diff --git a/.github/workflows/font_tests.yml b/.github/workflows/font_tests.yml
index 0399c2ded..ff8353b37 100644
--- a/.github/workflows/font_tests.yml
+++ b/.github/workflows/font_tests.yml
@@ -46,7 +46,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Use Python 3.12
         uses: actions/setup-python@v5
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index a24b0bad5..99b224c6a 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -25,7 +25,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Run lint
         run: npx gulp lint
diff --git a/.github/workflows/publish_release.yml b/.github/workflows/publish_release.yml
index 741fdf0fb..b04b20437 100644
--- a/.github/workflows/publish_release.yml
+++ b/.github/workflows/publish_release.yml
@@ -27,7 +27,7 @@ jobs:
           registry-url: 'https://registry.npmjs.org'
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Build the `pdfjs-dist` library
         run: npx gulp dist
diff --git a/.github/workflows/publish_website.yml b/.github/workflows/publish_website.yml
index 086bc8f50..3e51ebff5 100644
--- a/.github/workflows/publish_website.yml
+++ b/.github/workflows/publish_website.yml
@@ -27,7 +27,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Build the website
         run: npx gulp web
diff --git a/.github/workflows/types_tests.yml b/.github/workflows/types_tests.yml
index 98e96242f..f0b96a3be 100644
--- a/.github/workflows/types_tests.yml
+++ b/.github/workflows/types_tests.yml
@@ -25,7 +25,7 @@ jobs:
           node-version: ${{ matrix.node-version }}
 
       - name: Install dependencies
-        run: npm install
+        run: npm ci
 
       - name: Run types tests
         run: npx gulp typestest