diff --git a/package.json b/package.json
index 69c71d5d..2b60c7bb 100644
--- a/package.json
+++ b/package.json
@@ -38,13 +38,13 @@
     "chai": "^3.5.0",
     "grunt": "^1.1.0",
     "grunt-babel": "^7.0.0",
-    "grunt-browserify": "^5.3.0",
+    "grunt-browserify": "^6.0.0",
     "grunt-cli": "^1.3.1",
     "grunt-contrib-clean": "^1.1.0",
     "grunt-contrib-copy": "^1.0.0",
-    "grunt-eslint": "^19.0.0",
+    "grunt-eslint": "^23.0.0",
     "grunt-shell": "^2.1.0",
-    "karma": "^4.4.1",
+    "karma": "^6.3.16",
     "karma-browserify": "^5.2.0",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^2.2.0",
@@ -53,7 +53,7 @@
     "karma-mocha-reporter": "^2.2.3",
     "karma-safari-launcher": "^1.0.0",
     "karma-stability-reporter": "^3.0.1",
-    "mocha": "^5.2.0",
+    "mocha": "^6.2.3",
     "sinon": "^2.2.0",
     "sinon-chai": "^2.14.0",
     "travis-multirunner": "^4.6.0"