diff --git a/src/version.h b/src/version.h
index fff4dff3ac..ee17b58062 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "18 Jan 2011"
+#define LAMMPS_VERSION "1 Feb 2011"