diff --git a/src/rapidmix.h b/src/rapidmix.h
index 5b7d5d0638eee7ac86b468bcc1de9c5ccda0192d..358bfd72cb6e3a903ec133e11a5a19f49d84be30 100644
--- a/src/rapidmix.h
+++ b/src/rapidmix.h
@@ -38,9 +38,9 @@
 #define RAPIDMIX_VERSION_MAJOR 2
 #define RAPIDMIX_VERSION_MINOR 3
 #define RAPIDMIX_VERSION_PATCH 0
-#define RAPIDMIX_VERSION "2.3.0"
+#define RAPIDMIX_VERSION "2.3.1"
 #define RAPIDMIX_JSON_DOC_VERSION "1.0.0"
-#define RAPIDMIX_REVISION "06-DECEMBER-2017"
+#define RAPIDMIX_REVISION "2-MAY-2018"
 
 #include "machineLearning/machineLearning.h"
 #include "machineLearning/trainingData.h"