diff --git a/pym/bob/develop/version.py b/pym/bob/develop/version.py
index c9af39ece..6da7d8cb4 100644
--- a/pym/bob/develop/version.py
+++ b/pym/bob/develop/version.py
@@ -61,7 +61,7 @@ def getVersion():
 
     if not version:
         # Last fallback. See PEP 440 and adjust accordingly.
-        version = "0.20+unknown"
+        version = "0.21+unknown"
 
     return version