diff --git a/gantt-chart/.babelrc b/gantt-chart/.babelrc
index 83ad455..049df1a 100644
--- a/gantt-chart/.babelrc
+++ b/gantt-chart/.babelrc
@@ -12,7 +12,7 @@
   "plugins": [
     "@babel/plugin-transform-modules-commonjs",
     ["@babel/plugin-transform-runtime", { "regenerator": true }],
-    "@babel/plugin-proposal-class-properties",
-    "@babel/plugin-proposal-object-rest-spread"
+    "@babel/plugin-transform-class-properties",
+    "@babel/plugin-transform-object-rest-spread"
   ]
 } 
\ No newline at end of file