diff --git a/pkgs/development/python-modules/dremel3dpy/default.nix b/pkgs/development/python-modules/dremel3dpy/default.nix
index e7a777021b1..b734311b159 100644
--- a/pkgs/development/python-modules/dremel3dpy/default.nix
+++ b/pkgs/development/python-modules/dremel3dpy/default.nix
@@ -35,11 +35,6 @@ buildPythonPackage rec {
     yarl
   ];
 
-  postPatch = ''
-    # Ignore the pinning
-    sed -i -e "s/==[0-9.]*//" setup.py
-  '';
-
   # Module has no tests
   doCheck = false;