diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 8cd29d8eaa..b6e1ccd4f0 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -99,9 +99,14 @@ jobs:
         yarn karma-headless-firefox
       shell: bash
       if: matrix.os == 'ubuntu-latest'
+    - name: Test Packages
+      run: |
+        ./scripts/test-npm-packages.sh
+      shell: bash
+      if: matrix.os == 'ubuntu-latest'
     - name: Build bundle
       run: yarn run build-bundle
-      shell: bash  
+      shell: bash
     - name: Build examples
       run: yarn run build-examples
       shell: bash
diff --git a/@here/harp-map-theme/package.json b/@here/harp-map-theme/package.json
index ae84247bb2..ba1f44de98 100644
--- a/@here/harp-map-theme/package.json
+++ b/@here/harp-map-theme/package.json
@@ -11,7 +11,7 @@
         "test": "cross-env mocha --require source-map-support/register $EXTRA_MOCHA_ARGS ./test/*.js",
         "build": "tsc --build $EXTRA_TSC_ARGS",
         "prepare-icons": "ts-node ./scripts/prepareIcons.ts",
-        "prepare": "cross-env tsc --sourceMap false $EXTRA_TSC_ARGS && ts-node ./scripts/prepack.ts"
+        "prepare": "cross-env tsc --sourceMap false $EXTRA_TSC_ARGS && ts-node scripts/prepack.ts"
     },
     "repository": {
         "type": "git",