diff --git a/package.json b/package.json
index 4eea430a..8a3ff042 100644
--- a/package.json
+++ b/package.json
@@ -128,7 +128,7 @@
     "coveralls": "^3.0.3",
     "drop-babel-typeof": "^1.0.3",
     "istanbul": "^0.4.5",
-    "npm-dollar": "^2.1.3",
+    "npm-dollar": "^2.2.1",
     "rollup": "^1.10.1",
     "rollup-plugin-babel": "^4.3.2",
     "rollup-plugin-node-resolve": "^4.2.3",