diff --git a/package-lock.json b/package-lock.json
index d8cd54b..c646e15 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@terrestris/d3-util",
-  "version": "0.9.0",
+  "version": "0.9.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 0ee1bed..ffbb581 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@terrestris/d3-util",
-  "version": "0.9.0",
+  "version": "0.9.1",
   "description": "A set of helper classes for working with d3 charts.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",