diff --git a/package.json b/package.json
index e573c9f1b2e..24e010e1d6a 100644
--- a/package.json
+++ b/package.json
@@ -133,7 +133,7 @@
     "puppeteer": "^1.3.0",
     "qunit": "^2.5.0",
     "route-recognizer": "^0.3.3",
-    "router_js": "2.0.0-beta.3",
+    "router_js": "2.0.0-beta.4",
     "rsvp": "^4.8.2",
     "semver": "^5.5.0",
     "serve-static": "^1.12.2",
diff --git a/yarn.lock b/yarn.lock
index 470f4eba773..5440e234977 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6263,9 +6263,9 @@ route-recognizer@^0.3.3:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/route-recognizer/-/route-recognizer-0.3.3.tgz#1d365e27fa6995e091675f7dc940a8c00353bd29"
 
-router_js@2.0.0-beta.3:
-  version "2.0.0-beta.3"
-  resolved "https://registry.yarnpkg.com/router_js/-/router_js-2.0.0-beta.3.tgz#2316d19c0c89555e11578f54e361041a5b64f199"
+router_js@2.0.0-beta.4:
+  version "2.0.0-beta.4"
+  resolved "https://registry.yarnpkg.com/router_js/-/router_js-2.0.0-beta.4.tgz#b61821c9f6da70e3c6114a09ef8135b389b7d0d0"
 
 rsvp@3.0.14:
   version "3.0.14"