diff --git a/pkgs/development/python-modules/ufomerge/default.nix b/pkgs/development/python-modules/ufomerge/default.nix
index 8f59f650ccc9..ed03839cfa3e 100644
--- a/pkgs/development/python-modules/ufomerge/default.nix
+++ b/pkgs/development/python-modules/ufomerge/default.nix
@@ -13,20 +13,16 @@
 
 buildPythonPackage rec {
   pname = "ufomerge";
-  version = "1.8.2";
+  version = "1.8.3";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "googlefonts";
     repo = "ufomerge";
     tag = "v${version}";
-    hash = "sha256-D+BhKCKWgprQn+eXFgwnSN/06+JF5CiUS0VAS1Kvedw=";
+    hash = "sha256-E/RgFJXyA6/ZktsjydqDecysi03+XQDOD0SeH3rlFZI=";
   };
 
-  nativeBuildInputs = [ pythonRelaxDepsHook ];
-
-  pythonRelaxDeps = [ "fonttools" ];
-
   build-system = [
     setuptools
     setuptools-scm
@@ -42,9 +38,9 @@ buildPythonPackage rec {
     fontfeatures
   ];
 
-  disabledTestPaths = [
-    # Failing due to fonttools being to old
-    "tests/test_layout.py"
+  disabledTests = [
+    # Fails with `KeyError: 'B'`
+    "test_28"
   ];
 
   pythonImportsCheck = [ "ufomerge" ];
@@ -52,7 +48,7 @@ buildPythonPackage rec {
   meta = {
     description = "Command line utility and Python library that merges two UFO source format fonts into a single file";
     homepage = "https://github.com/googlefonts/ufomerge";
-    changelog = "https://github.com/googlefonts/ufomerge/releases/tag/v${version}";
+    changelog = "https://github.com/googlefonts/ufomerge/releases/tag/${src.tag}";
     license = lib.licenses.asl20;
     maintainers = with lib.maintainers; [ jopejoe1 ];
   };