diff --git a/.github/workflows/app.build.yml b/.github/workflows/app.build.yml
index 601df33f..886ab7db 100644
--- a/.github/workflows/app.build.yml
+++ b/.github/workflows/app.build.yml
@@ -27,6 +27,15 @@ jobs:
                   wp-username: ${{ secrets.WP_USERNAME }}
                   wp-password: ${{ secrets.WP_PASSWORD }}
 
+            # See: https://stackoverflow.com/questions/55110729/how-do-i-cache-steps-in-github-actions
+            - name: Cache NPM dependencies
+              uses: actions/cache@v3
+              with:
+                path: ~/.npm
+                key: ${{ runner.OS }}-npm-cache-${{ hashFiles('**/package-lock.json') }}
+                restore-keys: |
+                  ${{ runner.OS }}-npm-cache-
+
             - name: Install dependencies
               run: npm install