diff --git a/Utilities/for_trees/ContaminationBySisters_v2.2.py b/Utilities/for_trees/ContaminationBySisters.py
similarity index 99%
rename from Utilities/for_trees/ContaminationBySisters_v2.2.py
rename to Utilities/for_trees/ContaminationBySisters.py
index 941c3cb..2950d44 100644
--- a/Utilities/for_trees/ContaminationBySisters_v2.2.py
+++ b/Utilities/for_trees/ContaminationBySisters.py
@@ -4,7 +4,7 @@
 #Dependencies: Python3, ete3
 #Inputs: A folder of trees
 #Outputs: Two spreadsheets summarizing sister relationships, one per sequence and another per taxon. 
-#Example: python ContaminationBySisters_v2.2.py --input /Path/to/trees
+#Example: python ContaminationBySisters.py --input /Path/to/trees
 
 #Dependencies
 import os, sys, re