diff --git a/.github/workflows/__config-input.yml b/.github/workflows/__config-input.yml
index f3422a825..160a61b81 100644
--- a/.github/workflows/__config-input.yml
+++ b/.github/workflows/__config-input.yml
@@ -47,7 +47,7 @@ jobs:
           node-version: 20.x
           cache: npm
       - name: Install dependencies
-        run: npm install
+        run: npm ci
       - name: Prepare test
         id: prepare-test
         uses: ./.github/actions/prepare-test
diff --git a/.github/workflows/__packaging-codescanning-config-inputs-js.yml b/.github/workflows/__packaging-codescanning-config-inputs-js.yml
index b3180ecb5..185cccbc2 100644
--- a/.github/workflows/__packaging-codescanning-config-inputs-js.yml
+++ b/.github/workflows/__packaging-codescanning-config-inputs-js.yml
@@ -73,7 +73,7 @@ jobs:
           node-version: 20.x
           cache: npm
       - name: Install dependencies
-        run: npm install
+        run: npm ci
       - name: Prepare test
         id: prepare-test
         uses: ./.github/actions/prepare-test
diff --git a/.github/workflows/__packaging-config-inputs-js.yml b/.github/workflows/__packaging-config-inputs-js.yml
index 23632e48a..810b85df3 100644
--- a/.github/workflows/__packaging-config-inputs-js.yml
+++ b/.github/workflows/__packaging-config-inputs-js.yml
@@ -73,7 +73,7 @@ jobs:
           node-version: 20.x
           cache: npm
       - name: Install dependencies
-        run: npm install
+        run: npm ci
       - name: Prepare test
         id: prepare-test
         uses: ./.github/actions/prepare-test
diff --git a/.github/workflows/__packaging-config-js.yml b/.github/workflows/__packaging-config-js.yml
index eb75016ff..ea96e3149 100644
--- a/.github/workflows/__packaging-config-js.yml
+++ b/.github/workflows/__packaging-config-js.yml
@@ -73,7 +73,7 @@ jobs:
           node-version: 20.x
           cache: npm
       - name: Install dependencies
-        run: npm install
+        run: npm ci
       - name: Prepare test
         id: prepare-test
         uses: ./.github/actions/prepare-test
diff --git a/.github/workflows/__packaging-inputs-js.yml b/.github/workflows/__packaging-inputs-js.yml
index beb67d20a..e2db4c443 100644
--- a/.github/workflows/__packaging-inputs-js.yml
+++ b/.github/workflows/__packaging-inputs-js.yml
@@ -73,7 +73,7 @@ jobs:
           node-version: 20.x
           cache: npm
       - name: Install dependencies
-        run: npm install
+        run: npm ci
       - name: Prepare test
         id: prepare-test
         uses: ./.github/actions/prepare-test
diff --git a/.github/workflows/codescanning-config-cli.yml b/.github/workflows/codescanning-config-cli.yml
index 1540eb3a1..925e5ce17 100644
--- a/.github/workflows/codescanning-config-cli.yml
+++ b/.github/workflows/codescanning-config-cli.yml
@@ -63,7 +63,7 @@ jobs:
         cache: 'npm'
 
     - name: Install dependencies
-      run: npm install
+      run: npm ci
 
     - name: Prepare test
       id: prepare-test
diff --git a/.github/workflows/pr-checks.yml b/.github/workflows/pr-checks.yml
index 77b06a6a7..365b53a94 100644
--- a/.github/workflows/pr-checks.yml
+++ b/.github/workflows/pr-checks.yml
@@ -37,10 +37,10 @@ jobs:
 
       - name: Install dependencies
         run: |
-          # Use the system Bash shell to ensure we can run commands like `npm install`
+          # Use the system Bash shell to ensure we can run commands like `npm ci`
           # that are not available in the default shell on Windows.
           npm config set script-shell bash
-          npm install
+          npm ci
 
       - name: Verify compiled JS up to date
         run: .github/workflows/script/check-js.sh
diff --git a/.github/workflows/query-filters.yml b/.github/workflows/query-filters.yml
index 78b76f6ed..1014b4e55 100644
--- a/.github/workflows/query-filters.yml
+++ b/.github/workflows/query-filters.yml
@@ -33,7 +33,7 @@ jobs:
         cache: npm
 
     - name: Install dependencies
-      run: npm install
+      run: npm ci
 
     - name: Prepare test
       id: prepare-test
diff --git a/.github/workflows/rebuild.yml b/.github/workflows/rebuild.yml
index d7414cfc5..9ac5e64e0 100644
--- a/.github/workflows/rebuild.yml
+++ b/.github/workflows/rebuild.yml
@@ -63,7 +63,7 @@ jobs:
 
       - name: Compile TypeScript
         run: |
-          npm install
+          npm ci
           npm run lint -- --fix
           npm run build
 
diff --git a/pr-checks/sync.py b/pr-checks/sync.py
index cd1b1dde3..25518d319 100755
--- a/pr-checks/sync.py
+++ b/pr-checks/sync.py
@@ -123,7 +123,7 @@ for file in sorted((this_dir / 'checks').glob('*.yml')):
             },
             {
                 'name': 'Install dependencies',
-                'run': 'npm install',
+                'run': 'npm ci',
             },
         ])