Update package.json

Author: AsafSavichWs

package.json

@@ -31,7 +31,7 @@
 
     "animate.css": "3.5.2",
     "bootstrap": "4.0.0-beta",
-    "chart.js": "1.1.1",
+    "chart.js": "2.9.3",
     "chartist": "0.11.0",
     "easy-pie-chart": "2.1.7",
     "firebase": "4.4.0",