diff --git a/src/os/windows/ottdres.rc.in b/src/os/windows/ottdres.rc.in
index ae42f58fca..b71ebefe28 100644
--- a/src/os/windows/ottdres.rc.in
+++ b/src/os/windows/ottdres.rc.in
@@ -79,8 +79,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,5,0,!!REVISION!!
- PRODUCTVERSION 1,5,0,!!REVISION!!
+ FILEVERSION 1,5,1,!!REVISION!!
+ PRODUCTVERSION 1,5,1,!!REVISION!!
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
diff --git a/src/rev.cpp.in b/src/rev.cpp.in
index c208382050..7d1ee95d86 100644
--- a/src/rev.cpp.in
+++ b/src/rev.cpp.in
@@ -72,7 +72,7 @@ const byte _openttd_revision_modified = !!MODIFIED!!;
  * final release will always have a lower version number than the released
  * version, thus making comparisons on specific revisions easy.
  */
-const uint32 _openttd_newgrf_version = 1 << 28 | 5 << 24 | 0 << 20 | 0 << 19 | (!!REVISION!! & ((1 << 19) - 1));
+const uint32 _openttd_newgrf_version = 1 << 28 | 5 << 24 | 1 << 20 | 0 << 19 | (!!REVISION!! & ((1 << 19) - 1));
 
 #ifdef __MORPHOS__
 /**