diff --git a/src/version.h b/src/version.h
index d93e3e4459..5d1e1704c8 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "25 May 2012"
+#define LAMMPS_VERSION "27 May 2012"