diff --git a/contrib/installer/maxcoin.nsi b/contrib/installer/maxcoin.nsi
index b2cf062..9467020 100644
--- a/contrib/installer/maxcoin.nsi
+++ b/contrib/installer/maxcoin.nsi
@@ -12,8 +12,8 @@
 # version
 !define VERSIONMAJOR 0
 !define VERSIONMINOR 9
-!define VERSIONBUILD 1
-!define VERSIONINCRM 0
+!define VERSIONBUILD 3
+!define VERSIONINCRM 1
 
 # These will be displayed by the "Click here for support information" link in "Add/Remove Programs"
 !define HELPURL "http://maxcoin.co.uk" # "Support Information" link
diff --git a/maxcoin-qt.pro b/maxcoin-qt.pro
index 6258326..c009cd3 100644
--- a/maxcoin-qt.pro
+++ b/maxcoin-qt.pro
@@ -1,7 +1,7 @@
 TEMPLATE = app
 TARGET = maxcoin-qt
 macx:TARGET = "MaxCoin-Qt"
-VERSION = 0.9.3.0
+VERSION = 0.9.3.1
 INCLUDEPATH += src src/json src/qt
 QT += network
 DEFINES += QT_GUI BOOST_THREAD_USE_LIB BOOST_SPIRIT_THREADSAFE
diff --git a/src/clientversion.h b/src/clientversion.h
index 538a999..5620f31 100644
--- a/src/clientversion.h
+++ b/src/clientversion.h
@@ -9,7 +9,7 @@
 #define CLIENT_VERSION_MAJOR       0
 #define CLIENT_VERSION_MINOR       9
 #define CLIENT_VERSION_REVISION    3
-#define CLIENT_VERSION_BUILD       0
+#define CLIENT_VERSION_BUILD       1
 
 // Set to true for release, false for prerelease or test build
 #define CLIENT_VERSION_IS_RELEASE  true
diff --git a/src/version.h b/src/version.h
index 1edc719..2458490 100644
--- a/src/version.h
+++ b/src/version.h
@@ -25,7 +25,7 @@ extern const std::string CLIENT_DATE;
 // network protocol versioning
 //
 
-static const int PROTOCOL_VERSION = 70004;
+static const int PROTOCOL_VERSION = 70005;
 
 // earlier versions not supported
 static const int MIN_PROTO_VERSION = 70000;