diff --git a/composer.json b/composer.json
index 4e2c627..f590cc2 100644
--- a/composer.json
+++ b/composer.json
@@ -40,7 +40,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2.8.x-dev"
+            "dev-master": "3.0.x-dev"
         }
     }
 }
diff --git a/src/Uuid.php b/src/Uuid.php
index 107b0ba..29fd08f 100644
--- a/src/Uuid.php
+++ b/src/Uuid.php
@@ -93,7 +93,7 @@ final class Uuid
     /**
      * Version of the Rhumsaa\Uuid package
      */
-    const VERSION = '2.8.x-dev';
+    const VERSION = '3.0.x-dev';
 
     /**
      * For testing, 64-bit system override; if true, treat the system as 32-bit