diff --git a/src/version.h b/src/version.h
index 1fc264bd9f..8ead3a8809 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "31 Jan 2012"
+#define LAMMPS_VERSION "1 Feb 2012"