diff --git a/pkgs/development/python-modules/aplpy/default.nix b/pkgs/development/python-modules/aplpy/default.nix
index ac00576cc297b..0304a8eff852a 100644
--- a/pkgs/development/python-modules/aplpy/default.nix
+++ b/pkgs/development/python-modules/aplpy/default.nix
@@ -1,8 +1,6 @@
 { lib
 , astropy
-, astropy-helpers
 , buildPythonPackage
-, cython
 , fetchpatch
 , fetchPypi
 , matplotlib
@@ -15,7 +13,10 @@
 , pythonOlder
 , reproject
 , scikit-image
+, setuptools
+, setuptools-scm
 , shapely
+, wheel
 }:
 
 buildPythonPackage rec {
@@ -32,12 +33,13 @@ buildPythonPackage rec {
   };
 
   nativeBuildInputs = [
-    astropy-helpers
+    setuptools
+    setuptools-scm
+    wheel
   ];
 
   propagatedBuildInputs = [
     astropy
-    cython
     matplotlib
     numpy
     pillow
diff --git a/pkgs/development/python-modules/pyregion/default.nix b/pkgs/development/python-modules/pyregion/default.nix
index 115729b647668..30c63528514f2 100644
--- a/pkgs/development/python-modules/pyregion/default.nix
+++ b/pkgs/development/python-modules/pyregion/default.nix
@@ -29,6 +29,7 @@ buildPythonPackage rec {
     pyparsing
     numpy
     astropy
+    cython
   ];
 
   # Upstream patches needed for the tests to pass