diff --git a/pkgs/by-name/op/openapi-python-client/package.nix b/pkgs/by-name/op/openapi-python-client/package.nix
index b7a23b4a0a88..23b3f36f454d 100644
--- a/pkgs/by-name/op/openapi-python-client/package.nix
+++ b/pkgs/by-name/op/openapi-python-client/package.nix
@@ -11,7 +11,7 @@
 
 python3Packages.buildPythonApplication rec {
   pname = "openapi-python-client";
-  version = "0.27.1";
+  version = "0.28.0";
   pyproject = true;
 
   src = fetchFromGitHub {
@@ -19,7 +19,7 @@ python3Packages.buildPythonApplication rec {
     owner = "openapi-generators";
     repo = "openapi-python-client";
     tag = "v${version}";
-    hash = "sha256-T8EC9wpkHVps7rNgwLx7VdIt1O7v021gUZHbVY6QT/Q=";
+    hash = "sha256-CxFadu6HaGw78GNAQegjC0ZVtpqaZtUOKLVWoMKkPl8=";
   };
 
   nativeBuildInputs = [