diff --git a/package.json b/package.json
index d325494..3ef207b 100644
--- a/package.json
+++ b/package.json
@@ -36,11 +36,11 @@
   },
   "dependencies": {
     "async": "2.1.4",
-    "lodash": "4.17.2"
+    "lodash": "^4.17.11"
   },
   "devDependencies": {
-    "grunt": "0.4.5",
+    "grunt": "^1.0.3",
     "grunt-bump": "0.7.0",
-    "mocha": "2.2.5"
+    "mocha": "^6.0.2"
   }
 }