diff --git a/ResInsightVersion.cmake b/ResInsightVersion.cmake
index bdbe0b89f3..b80f06dd11 100644
--- a/ResInsightVersion.cmake
+++ b/ResInsightVersion.cmake
@@ -1,7 +1,7 @@
 
 set(RESINSIGHT_MAJOR_VERSION 2017)
 set(RESINSIGHT_MINOR_VERSION 05)
-set(RESINSIGHT_INCREMENT_VERSION "1-dev")
+set(RESINSIGHT_INCREMENT_VERSION "pre-proto.15")
 
 
 # https://github.com/CRAVA/crava/tree/master/libs/nrlib