diff --git a/cli/main.cpp b/cli/main.cpp
index 4378379e2..6333953cb 100644
--- a/cli/main.cpp
+++ b/cli/main.cpp
@@ -20,7 +20,7 @@
 /**
  *
  * @mainpage Cppcheck
- * @version 1.64
+ * @version 1.64.99
  *
  * @section overview_sec Overview
  * Cppcheck is a simple tool for static analysis of C/C++ code.
diff --git a/lib/version.h b/lib/version.h
index 85e4665b8..9c7914c7b 100644
--- a/lib/version.h
+++ b/lib/version.h
@@ -1,3 +1,3 @@
-#define CPPCHECK_VERSION_STRING "1.64"
-#define CPPCHECK_VERSION 1,64,0,0
+#define CPPCHECK_VERSION_STRING "1.65 dev"
+#define CPPCHECK_VERSION 1,64,99,0
 #define LEGALCOPYRIGHT L"Copyright (C) 2007-2014 Daniel Marjam\x00E4ki and Cppcheck team."
diff --git a/man/manual.docbook b/man/manual.docbook
index 695ad0188..cd0b9ec38 100644
--- a/man/manual.docbook
+++ b/man/manual.docbook
@@ -3,7 +3,7 @@
 "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
 <book>
   <bookinfo>
-    <title>Cppcheck 1.64</title>
+    <title>Cppcheck 1.65 dev</title>
 
     <date>2013-12-23</date>
   </bookinfo>
diff --git a/win_installer/productInfo.wxi b/win_installer/productInfo.wxi
index ec32ccb51..8f7e951fe 100644
--- a/win_installer/productInfo.wxi
+++ b/win_installer/productInfo.wxi
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Include>
-  <?define ProductName = "Cppcheck 1.64" ?>
+  <?define ProductName = "Cppcheck 1.65 dev" ?>
   <?define ProductNameShort = "Cppcheck" ?>
-  <?define ProductVersion = "1.64" ?>
+  <?define ProductVersion = "1.64.99" ?>
 
   <?define ProductManufacturer = "The Cppcheck team" ?>
   <?define ProductDescription = "Cppcheck is a tool for static analysis of C/C++ code" ?>