diff --git a/projects/ngx-sweetalert2-demo/tsconfig.spec.json b/projects/ngx-sweetalert2-demo/tsconfig.spec.json
index a8ce1d3..3de7494 100644
--- a/projects/ngx-sweetalert2-demo/tsconfig.spec.json
+++ b/projects/ngx-sweetalert2-demo/tsconfig.spec.json
@@ -7,6 +7,9 @@
       "node"
     ]
   },
+  "angularCompilerOptions": {
+    "enableIvy": false
+  },
   "files": [
     "src/test.ts",
     "src/polyfills.ts"