diff --git a/pkgs/development/python-modules/mhcflurry/default.nix b/pkgs/development/python-modules/mhcflurry/default.nix
index 0f646113ec4d..e27c94704edc 100644
--- a/pkgs/development/python-modules/mhcflurry/default.nix
+++ b/pkgs/development/python-modules/mhcflurry/default.nix
@@ -15,7 +15,6 @@
   tqdm,
 
   # tests
-  nose,
   pytestCheckHook,
 }: