diff --git a/pkgs/development/python-modules/deal/default.nix b/pkgs/development/python-modules/deal/default.nix
index 5f887848453b..b9e050187dba 100644
--- a/pkgs/development/python-modules/deal/default.nix
+++ b/pkgs/development/python-modules/deal/default.nix
@@ -6,16 +6,13 @@
 , astroid
 , pytestCheckHook
 , docstring-parser
-, isort
 , marshmallow
-, pytest-cov
 , sphinx
 , hypothesis
 , vaa
 , deal-solver
 , pygments
 , typeguard
-, coverage
 , urllib3
 }: