diff --git a/src/version.h b/src/version.h
index 2a1b0ba2af..ec4118c8de 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define LAMMPS_VERSION "3 Feb 2012"
+#define LAMMPS_VERSION "4 Feb 2012"