diff --git a/nbconvert/_version.py b/nbconvert/_version.py
index 938a65d95..a8a0460b4 100644
--- a/nbconvert/_version.py
+++ b/nbconvert/_version.py
@@ -1,5 +1,5 @@
 version_info = (6, 3, 0)
-pre_info = 'b0'
+pre_info = ''
 dev_info = ''
 
 def create_valid_version(release_info, epoch=None, pre_input='', dev_input=''):