diff --git a/src/version.h b/src/version.h
index b913961aa7..a817d6bd10 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "14 May 2010"
+#define LAMMPS_VERSION "15 May 2010"