diff --git a/src/version.h b/src/version.h
index 5c9b2c936..5e161dae2 100644
--- a/src/version.h
+++ b/src/version.h
@@ -41,15 +41,15 @@ const char *GetVersionString();
 
 /** Lots of different version numbers **/
 
-#define VERSIONSTR "3.8pre"
+#define VERSIONSTR "4.1pre"
 
 // The version as seen in the Windows resource
-#define RC_FILEVERSION 3,7,9999,0
-#define RC_PRODUCTVERSION 3,7,9999,0
+#define RC_FILEVERSION 4,0,9999,0
+#define RC_PRODUCTVERSION 4,0,9999,0
 #define RC_PRODUCTVERSION2 VERSIONSTR
 // These are for content versioning.
-#define VER_MAJOR 3
-#define VER_MINOR 8
+#define VER_MAJOR 4
+#define VER_MINOR 1
 #define VER_REVISION 0
 
 // Version identifier for network games.