diff --git a/package.json b/package.json
index 48751e21..92fda38b 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
     "url-loader": "^1.1.2",
     "web-resource-inliner": "^4.2.1",
     "webpack": "^4.25.1",
-    "webpack-dev-server": "^3.1.10",
+    "webpack-dev-server": "^3.1.14",
     "webpack-node-externals": "^1.7.2",
     "worker-loader": "^2.0.0"
   },
@@ -104,6 +104,7 @@
     "lodash": "^4.17.11",
     "loglevel": "^1.6.1",
     "loglevel-message-prefix": "^3.0.0",
+    "mgrs": "^1.0.0",
     "moment": "^2.22.2",
     "moment-timezone": "^0.5.23",
     "ngeohash": "^0.6.0",