diff --git a/package.json b/package.json
index b5d7b7c10..3ffe4cba3 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "concurrently": "^3.1.0",
     "coveralls": "^2.11.4",
     "documentation": "^4.0.0-beta9",
-    "mobx": "^3.0.0",
+    "mobx": "^3.1.0",
     "nyc": "^10.0.0",
     "tape": "^4.6.0",
     "tslint": "^3.15.1",
@@ -46,7 +46,7 @@
     "remotedev": "^0.2.2"
   },
   "peerDependencies": {
-    "mobx": "^3.0.0-rc.1"
+    "mobx": "^3.1.0"
   },
   "keywords": [
     "mobx",