diff --git a/package-lock.json b/package-lock.json
index 4e61878..6983f52 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "maputnik",
-  "version": "1.4.0",
+  "version": "1.5.0-beta",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 317bfc2..952ed34 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "maputnik",
-  "version": "1.4.0",
+  "version": "1.5.0-beta",
   "description": "A MapboxGL visual style editor",
   "main": "''",
   "scripts": {