diff --git a/pkgs/by-name/yo/yojimbo/package.nix b/pkgs/by-name/yo/yojimbo/package.nix
index a89e356752a0..287de4a052bc 100644
--- a/pkgs/by-name/yo/yojimbo/package.nix
+++ b/pkgs/by-name/yo/yojimbo/package.nix
@@ -6,18 +6,18 @@
   doxygen,
   libsodium,
   mbedtls_2,
+  nix-update-script,
 }:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation (finalAttrs: {
   pname = "yojimbo";
-  version = "1.1";
+  version = "1.2.3";
 
   src = fetchFromGitHub {
-    owner = "networkprotocol";
+    owner = "mas-bandwidth";
     repo = "yojimbo";
-    rev = "e02219c102d9b440290539036992d77608eab3b0";
-    sha256 = "0jn25ddv73hwjals883a910m66kwj6glxxhnmn96bpzsvsaimnkr";
-    fetchSubmodules = true;
+    tag = "v${finalAttrs.version}";
+    sha256 = "sha256-GMYkWQTwHm7fGRSTIt2phv01CjEcw0l4iPQD4uTQ5yM=";
   };
 
   nativeBuildInputs = [
@@ -29,19 +29,28 @@ stdenv.mkDerivation {
     mbedtls_2
   ];
 
+  patches = [
+    # https://github.com/mas-bandwidth/serialize/pull/6
+    ./silence-uninitialized-warning.patch
+  ];
+
   postBuild = ''
-    premake5 docs
+    doxygen doxygen.config
   '';
 
   installPhase = ''
-    install -Dm555 -t $out/lib bin/libyojimbo.a
-    install -Dm444 -t $out/include yojimbo.h
+    install -Dm755 -t $out/lib bin/libyojimbo.a
+    cp -r -t $out include
     mkdir -p $out/share/doc/yojimbo
     cp -r docs/html $out/share/doc/yojimbo
   '';
 
   doCheck = true;
 
+  enableParallelBuilding = true;
+
+  passthru.updateScript = nix-update-script { };
+
   meta = with lib; {
     description = "Network library for client/server games with dedicated servers";
     longDescription = ''
@@ -49,9 +58,9 @@ stdenv.mkDerivation {
       It's designed around the networking requirements of competitive multiplayer games like first person shooters.
       As such it provides a time critical networking layer on top of UDP, with a client/server architecture supporting up to 64 players per-dedicated server instance.
     '';
-    homepage = "https://github.com/networkprotocol/yojimbo";
+    homepage = "https://github.com/mas-bandwidth/yojimbo";
     license = licenses.bsd3;
     platforms = platforms.x86_64;
     maintainers = with maintainers; [ paddygord ];
   };
-}
+})
diff --git a/pkgs/by-name/yo/yojimbo/silence-uninitialized-warning.patch b/pkgs/by-name/yo/yojimbo/silence-uninitialized-warning.patch
new file mode 100644
index 000000000000..d90b7af06114
--- /dev/null
+++ b/pkgs/by-name/yo/yojimbo/silence-uninitialized-warning.patch
@@ -0,0 +1,13 @@
+diff --git a/serialize.h b/serialize.h
+index 6e977ac..4d7413d 100644
+--- a/serialize/serialize.h
++++ b/serialize/serialize.h
+@@ -1400,7 +1400,7 @@ namespace serialize
+ 
+     template <typename Stream> bool serialize_float_internal( Stream & stream, float & value )
+     {
+-        uint32_t int_value;
++        uint32_t int_value = 0;
+         if ( Stream::IsWriting )
+         {
+             memcpy( (char*) &int_value, &value, 4 );