diff --git a/core/resources/build.properties b/core/resources/build.properties
index 121feabaa..8a03463d8 100644
--- a/core/resources/build.properties
+++ b/core/resources/build.properties
@@ -1,6 +1,6 @@
 
 # The OpenRocket build version
-build.version=23.xx
+build.version=23.09.beta.01
 
 # The copyright year for the build. Displayed in the about dialog.
 # Will show as Copyright 2013-${build.copyright}