diff --git a/package.json b/package.json
index 88816b8c..432db580 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "ua-parser-js": "0.7.17",
     "urijs": "1.19.1",
     "web-push": "3.3.0",
-    "yarn": "1.3.2"
+    "yarn": "1.5.0"
   },
   "devDependencies": {
     "babel-core": "6.26.0",