diff --git a/package-lock.json b/package-lock.json
index 38af7940..43ceb559 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "linefont",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "linefont",
-      "version": "3.0.0",
+      "version": "3.1.0",
       "license": "MIT",
       "devDependencies": {
         "dedent": "^0.7.0",
diff --git a/package.json b/package.json
index 29423331..14ed13f9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "linefont",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "description": "Typeface for visualizing data as line chart",
   "main": "index.js",
   "scripts": {