diff --git a/src/version.h b/src/version.h
index 10473a22f7..2ee6770f30 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "19 Jun 2011"
+#define LAMMPS_VERSION "20 Jun 2011"