diff --git a/package.json b/package.json
index b49a7b02dfb..47badf33939 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
     "git-repo-info": "^1.1.4",
     "git-repo-version": "^0.3.1",
     "github": "^0.2.3",
-    "glimmer-engine": "^0.19.3",
+    "glimmer-engine": "^0.19.4",
     "glob": "^5.0.13",
     "html-differ": "^1.3.4",
     "mocha": "^2.4.5",