diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 95de7362..b33c2545 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -260,11 +260,11 @@ jobs:
     - name: Build demo
       run: yarn build-demo
     - name: Integration tests (core)
-      run: yarn test-playwright-${{ matrix.browser }} --forbid-only --suite=core
+      run: yarn test-playwright-${{ matrix.browser }} --forbid-only --workers 4 --suite=core
     - name: Integration tests (xterm-addon-canvas)
-      run: yarn test-playwright-${{ matrix.browser }} --forbid-only --suite=xterm-addon-canvas
+      run: yarn test-playwright-${{ matrix.browser }} --forbid-only --workers 4 --suite=xterm-addon-canvas
     - name: Integration tests (xterm-addon-webgl)
-      run: yarn test-playwright-${{ matrix.browser }} --forbid-only --suite=xterm-addon-webgl
+      run: yarn test-playwright-${{ matrix.browser }} --forbid-only --workers 4 --suite=xterm-addon-webgl
 
   test-api:
     needs: build