diff --git a/src/version.h b/src/version.h
index 719b5561f4be7530a490f3c1ee4710dc228c283d..3969e11c175312db80cd72aaaced599b777f5ca5 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "17 Sep 2011"
+#define LAMMPS_VERSION "23 Sep 2011"