diff --git a/README.md b/README.md
index b4a05ec..7bcd94b 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Precision HLA typing from next-generation sequencing data
 
 Authors: András Szolek, Benjamin Schubert, Christopher Mohr  
 Date: April 2014  
-Version: 1.3.1  
+Version: 1.3.3  
 License: OptiType is released under a three-clause BSD license