diff --git a/pkgs/games/openttd/default.nix b/pkgs/games/openttd/default.nix
index afef33cce2d..903466524fb 100644
--- a/pkgs/games/openttd/default.nix
+++ b/pkgs/games/openttd/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "openttd-${version}";
-  version = "1.4.4";
+  version = "1.5.1";
 
   src = fetchurl {
     url = "http://binaries.openttd.org/releases/${version}/${name}-source.tar.xz";
-    sha256 = "1xykqb5bx2dzffxhvm4cbn1nf72f7zcdz8hy25i5wky4hfw31x3h";
+    sha256 = "0jcg8b0jbiw5kg7rqqw74hdh675r08pgm95grk9ch4z2gpjpd3n9";
   };
 
   buildInputs = [ SDL libpng pkgconfig xz zlib freetype fontconfig ];
@@ -17,12 +17,6 @@ stdenv.mkDerivation rec {
     "--without-liblzo2"
   ];
 
-  # NOTE: Remove this patch in 1.4.5 or greater
-  patches = [
-    # Adapted from svn r27079
-    ./fix-freetype-1.4.4.patch
-  ];
-
   makeFlags = "INSTALL_PERSONAL_DIR=";
 
   postInstall = ''
diff --git a/pkgs/games/openttd/fix-freetype-1.4.4.patch b/pkgs/games/openttd/fix-freetype-1.4.4.patch
deleted file mode 100644
index 37706ce05c9..00000000000
--- a/pkgs/games/openttd/fix-freetype-1.4.4.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-diff --git a/src/fontcache.cpp b/src/fontcache.cpp
-===================================================================
---- a/src/fontcache.cpp
-+++ b/src/fontcache.cpp
-@@ -537,6 +537,6 @@
- 
- 	/* Add 1 pixel for the shadow on the medium font. Our sprite must be at least 1x1 pixel */
--	int width  = max(1, slot->bitmap.width + (this->fs == FS_NORMAL));
--	int height = max(1, slot->bitmap.rows  + (this->fs == FS_NORMAL));
-+	unsigned int width  = max(1U, (unsigned int)slot->bitmap.width + (this->fs == FS_NORMAL));
-+	unsigned int height = max(1U, (unsigned int)slot->bitmap.rows  + (this->fs == FS_NORMAL));
- 
- 	/* Limit glyph size to prevent overflows later on. */
-@@ -554,6 +554,6 @@
- 	/* Draw shadow for medium size */
- 	if (this->fs == FS_NORMAL && !aa) {
--		for (int y = 0; y < slot->bitmap.rows; y++) {
--			for (int x = 0; x < slot->bitmap.width; x++) {
-+		for (unsigned int y = 0; y < (unsigned int)slot->bitmap.rows; y++) {
-+			for (unsigned int x = 0; x < (unsigned int)slot->bitmap.width; x++) {
- 				if (aa ? (slot->bitmap.buffer[x + y * slot->bitmap.pitch] > 0) : HasBit(slot->bitmap.buffer[(x / 8) + y * slot->bitmap.pitch], 7 - (x % 8))) {
- 					sprite.data[1 + x + (1 + y) * sprite.width].m = SHADOW_COLOUR;
-@@ -564,6 +564,6 @@
- 	}
- 
--	for (int y = 0; y < slot->bitmap.rows; y++) {
--		for (int x = 0; x < slot->bitmap.width; x++) {
-+	for (unsigned int y = 0; y < (unsigned int)slot->bitmap.rows; y++) {
-+		for (unsigned int x = 0; x < (unsigned int)slot->bitmap.width; x++) {
- 			if (aa ? (slot->bitmap.buffer[x + y * slot->bitmap.pitch] > 0) : HasBit(slot->bitmap.buffer[(x / 8) + y * slot->bitmap.pitch], 7 - (x % 8))) {
- 				sprite.data[x + y * sprite.width].m = FACE_COLOUR;