diff --git a/libdevcore/Common.cpp b/libdevcore/Common.cpp
index 28b537be5..1ffa66f14 100644
--- a/libdevcore/Common.cpp
+++ b/libdevcore/Common.cpp
@@ -28,7 +28,7 @@ using namespace dev;
 namespace dev
 {
 
-char const* Version = "0.9.20";
+char const* Version = "0.9.21";
 
 const u256 UndefinedU256 = ~(u256)0;