diff --git a/setup.py b/setup.py
index 6b99c8c..a5a38d0 100644
--- a/setup.py
+++ b/setup.py
@@ -10,7 +10,7 @@
 setup(
     name='tellopy',
 
-    version='0.4.0.dev0',
+    version='0.4.0',
 
     description='DJI Tello drone controller',
     url='https://github.com/hanyazou/TelloPy',