diff --git a/immuneML/environment/Constants.py b/immuneML/environment/Constants.py
index b7ae875e1..b39faf866 100644
--- a/immuneML/environment/Constants.py
+++ b/immuneML/environment/Constants.py
@@ -1,6 +1,6 @@
 class Constants:
 
-    VERSION = "2.2.3"
+    VERSION = "2.2.4"
 
     # encoding constants
     FEATURE_DELIMITER = "-"