fixed npm audit error

package-lock.json

@@ -5756,9 +5756,8 @@
       }
     },
     "morris.js": {
-      "version": "0.5.0",
-      "resolved": "https://registry.npmjs.org/morris.js/-/morris.js-0.5.0.tgz",
-      "integrity": "sha1-cldnE1z64Fmq51mZuyzmocXRtEs="
+      "version": "github:morrisjs/morris.js#14530d0733801d5bef1264cf3d062ecace7e326b",
+      "from": "github:morrisjs/morris.js"
     },
     "mozjpeg": {
       "version": "4.1.1",

package.json

@@ -52,7 +52,7 @@
     "jquery-ui": "^1.12.1",
     "jvectormap": "^1.2.2",
     "moment": "^2.24.0",
-    "morris.js": "^0.5.0",
+    "morris.js": "github:morrisjs/morris.js",
     "pace": "0.0.4",
     "raphael": "^2.2.7",
     "select2": "^4.0.3",