diff --git a/src/version.h b/src/version.h
index 3b2f5f1794..ea5a782f2e 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "26 May 2010"
+#define LAMMPS_VERSION "27 May 2010"