diff --git a/package.json b/package.json
index fe2199a499b..56887821c0e 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "jquery": "1.11.3",
     "jquery-ui": "~1.10.2",
     "mailcheck": "1.1.0",
-    "modernizr": "3.3.1",
+    "modernizr": "3.7.0",
     "moment": "2.8.3",
     "nunjucks": "^1.3.4",
     "react": "0.13.3",
@@ -70,8 +70,8 @@
     "cpx": "~1.5.0",
     "cssnano": "^4.1.10",
     "eslint": "1.10.3",
-    "kss": "^3.0.0-beta.25",
-    "mocha": "2.3.2",
+    "kss": "^3.0.0",
+    "mocha": "6.2.3",
     "mocha-jsdom": "^2.0.0",
     "nunjucks": "^1.3.4",
     "onchange": "^6.1.0",