diff --git a/FlowCytometryTools/_version.py b/FlowCytometryTools/_version.py
index 819a300..abe1e1c 100644
--- a/FlowCytometryTools/_version.py
+++ b/FlowCytometryTools/_version.py
@@ -1 +1 @@
-version = "0.5.0"
+version = "0.5.1"