diff --git a/package.json b/package.json
index 512ca48..1aed1fb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "d3-force",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "Force-directed graph layout using velocity Verlet integration.",
   "keywords": [
     "d3",