CHANGELOG.md in upperkut-0.5.0 vs CHANGELOG.md in upperkut-0.5.1

@@ -1,8 +1,10 @@
 # Upperkut changes
 
 0.5.x
 ----------
+
+- Fix issue that prevented worker to run.
 - Fix thread-unsafe code that was overwriting worker configurations when
 multiples workers were configured in the same process.
 
 0.4.x
 -----------