diff --git a/src/version.h b/src/version.h
index 55a8759714..edd81e699f 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "20 Sep 2012"
+#define LAMMPS_VERSION "21 Sep 2012"