diff --git a/package.json b/package.json
index ddb9d918..2f68a34f 100644
--- a/package.json
+++ b/package.json
@@ -53,6 +53,6 @@
     "referee-sinon": "1.0.3",
     "rollup-plugin-babel": "2.6.1",
     "sinon": "1.17.4",
-    "time-grunt": "1.3.0"
+    "time-grunt": "1.4.0"
   }
 }