diff --git a/src/version.h b/src/version.h
index 2ec260021b..9c8ac950a9 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "30 Nov 2011"
+#define LAMMPS_VERSION "1 Dec 2011"