diff --git a/src/version.h b/src/version.h
index 840d95c190..06f5372acb 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "19 Jan 2013"
+#define LAMMPS_VERSION "20 Jan 2013"