diff --git a/pkgs/development/python-modules/oracledb/default.nix b/pkgs/development/python-modules/oracledb/default.nix
index e0ea963e9d4e..e1957ef0cf5c 100644
--- a/pkgs/development/python-modules/oracledb/default.nix
+++ b/pkgs/development/python-modules/oracledb/default.nix
@@ -3,7 +3,7 @@
   buildPythonPackage,
   cryptography,
   cython,
-  fetchPypi,
+  fetchFromGitHub,
   pythonOlder,
   setuptools,
   wheel,
@@ -14,13 +14,21 @@ buildPythonPackage rec {
   version = "3.3.0";
   pyproject = true;
 
-  disabled = pythonOlder "3.7";
+  disabled = pythonOlder "3.9";
 
-  src = fetchPypi {
-    inherit pname version;
-    hash = "sha256-6DDTVEoVeClryqVMboyK4QpYx9tGfFKMSyetv5yLTLA=";
+  src = fetchFromGitHub {
+    owner = "oracle";
+    repo = "python-oracledb";
+    tag = "v${version}";
+    fetchSubmodules = true;
+    hash = "sha256-SHIEl4pzuQBJ02KRPmOydFtmVD9qF3LGk9WPiDSpVzQ=";
   };
 
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace-fail "cython == 3.1" "cython"
+  '';
+
   build-system = [
     cython
     setuptools
@@ -34,14 +42,14 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "oracledb" ];
 
-  meta = with lib; {
+  meta = {
     description = "Python driver for Oracle Database";
     homepage = "https://oracle.github.io/python-oracledb";
     changelog = "https://github.com/oracle/python-oracledb/blob/v${version}/doc/src/release_notes.rst";
-    license = with licenses; [
+    license = with lib.licenses; [
       asl20 # and or
       upl
     ];
-    maintainers = with maintainers; [ harvidsen ];
+    maintainers = with lib.maintainers; [ harvidsen ];
   };
 }