diff --git a/include/gridpp.h b/include/gridpp.h
index 9b20b6ac..008d5d19 100644
--- a/include/gridpp.h
+++ b/include/gridpp.h
@@ -11,7 +11,7 @@
 #endif
 #include <exception>
 
-#define GRIDPP_VERSION "0.5.0"
+#define GRIDPP_VERSION "0.5.1"
 #define __version__ GRIDPP_VERSION
 
 namespace gridpp {