diff --git a/package.json b/package.json
index 57c0dc9..eb0443e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vaadin/vaadin-checkbox",
-  "version": "2.4.0-alpha2",
+  "version": "2.5.0-alpha1",
   "description": "vaadin-checkbox",
   "main": "vaadin-checkbox.html",
   "repository": "vaadin/vaadin-checkbox",
diff --git a/src/vaadin-checkbox.html b/src/vaadin-checkbox.html
index 9b221d5..2241286 100644
--- a/src/vaadin-checkbox.html
+++ b/src/vaadin-checkbox.html
@@ -119,7 +119,7 @@
         }
 
         static get version() {
-          return '2.4.0-alpha2';
+          return '2.5.0-alpha1';
         }
 
         static get properties() {