diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0cdba7e5a..fa033219d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,7 +19,7 @@ set(CMAKE_OSX_DEPLOYMENT_TARGET 10.15 CACHE STRING "Minimum OS X deployment vers
 set(PROJECT_NAME libCellML)
 set(PROJECT_URL https://libcellml.org)
 set(_PROJECT_VERSION 0.6.3)
-set(PROJECT_DEVELOPER_VERSION -rc.2)
+set(PROJECT_DEVELOPER_VERSION )
 project(${PROJECT_NAME} VERSION ${_PROJECT_VERSION} LANGUAGES CXX)
 
 # Set policies that affect the build.