diff --git a/pkgs/development/python-modules/coveralls/default.nix b/pkgs/development/python-modules/coveralls/default.nix
index 68cf993a5a8..55032864c3f 100644
--- a/pkgs/development/python-modules/coveralls/default.nix
+++ b/pkgs/development/python-modules/coveralls/default.nix
@@ -36,6 +36,10 @@ buildPythonPackage rec {
     pytestrunner
   ];
 
+  postPatch = ''
+    sed -i "s/'coverage>=\([^,]\+\),.*',$/'coverage>=\1',/" setup.py
+  '';
+
   # FIXME: tests requires .git directory to be present
   doCheck = false;