diff --git a/package.json b/package.json
index 6eb5959..e333ad1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "remap-istanbul",
-  "version": "0.9.5",
+  "version": "0.10.0",
   "description": "A tool for remapping Istanbul coverage via Source Maps",
   "homepage": "https://github.com/SitePen/remap-istanbul",
   "keywords": [
@@ -54,7 +54,7 @@
     "eslint-config-airbnb-base": "^10.0.1",
     "eslint-plugin-import": "^2.0.1",
     "grunt": "^1.0.1",
-    "gulp": "3.9.1",
+    "gulp": "4.0.0",
     "intern": "^3.3.0",
     "rimraf": "^2.5.4"
   }