diff --git a/tools/build/tsconfig.package.json b/tools/build/tsconfig.package.json
index c57549a..35e7597 100644
--- a/tools/build/tsconfig.package.json
+++ b/tools/build/tsconfig.package.json
@@ -21,5 +21,8 @@
       "es2015",
       "dom"
     ]
+  }, 
+  "angularCompilerOptions": {
+    "enableIvy": false
   }
 }