diff --git a/packages/cli/templates/webcomponents/igc-ts/projects/_base/files/package.json b/packages/cli/templates/webcomponents/igc-ts/projects/_base/files/package.json
index 471e0027a..faa65612d 100644
--- a/packages/cli/templates/webcomponents/igc-ts/projects/_base/files/package.json
+++ b/packages/cli/templates/webcomponents/igc-ts/projects/_base/files/package.json
@@ -49,6 +49,7 @@
     "rollup-plugin-terser": "^7.0.2",
     "rollup-plugin-workbox": "^8.1.0",
     "source-map": "^0.7.4",
-    "tslib": "^2.6.2"
+    "tslib": "^2.6.2",
+    "@types/mocha": "^10.0.6"
   }
 }
diff --git a/packages/cli/templates/webcomponents/igc-ts/projects/_base_with_home/files/package.json b/packages/cli/templates/webcomponents/igc-ts/projects/_base_with_home/files/package.json
index 9fecdb883..170f37bba 100644
--- a/packages/cli/templates/webcomponents/igc-ts/projects/_base_with_home/files/package.json
+++ b/packages/cli/templates/webcomponents/igc-ts/projects/_base_with_home/files/package.json
@@ -57,6 +57,7 @@
     "rollup-plugin-terser": "^7.0.2",
     "rollup-plugin-workbox": "^8.1.0",
     "source-map": "^0.7.4",
-    "tslib": "^2.6.2"
+    "tslib": "^2.6.2",
+    "@types/mocha": "^10.0.6"
   }
 }