diff --git a/pkgs/development/python-modules/rapidgzip/default.nix b/pkgs/development/python-modules/rapidgzip/default.nix
index ac8e104ce9af..26bf7b15bb14 100644
--- a/pkgs/development/python-modules/rapidgzip/default.nix
+++ b/pkgs/development/python-modules/rapidgzip/default.nix
@@ -9,24 +9,23 @@
 
 buildPythonPackage rec {
   pname = "rapidgzip";
-  version = "0.14.5";
+  version = "0.16.0";
   pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-+u1GAToaYqUZPElhWolmg+pcFO1HRLy0vRhpsUIFUdg=";
+    hash = "sha256-ixJPKbwS3kJJq4HoPlrTXmd0KhqP9Ky2G3TA2f2hwU4=";
   };
 
-  prePatch = ''
-    # pythonRelaxDeps doesn't work here
+  postPatch = ''
     substituteInPlace pyproject.toml \
-      --replace-fail "setuptools >= 61.2, < 72" "setuptools" \
-      --replace-fail "cython >= 3, < 3.1" cython
+      --replace-fail "setuptools >= 61.2, < 72" setuptools
   '';
 
-  nativeBuildInputs = [
+  nativeBuildInputs = [ nasm ];
+
+  build-system = [
     cython
-    nasm
     setuptools
   ];