diff --git a/src/version.h b/src/version.h
index eb3e7ec237..47193e5cb2 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "31 Jan 2013"
+#define LAMMPS_VERSION "1 Feb 2013"