diff --git a/gnu/packages/python-science.scm b/gnu/packages/python-science.scm
index a49e73b383..18b5faea82 100644
--- a/gnu/packages/python-science.scm
+++ b/gnu/packages/python-science.scm
@@ -3150,11 +3150,6 @@ logic, also known as grey logic.")
       '(list "--pyargs" "skmisc")
       #:phases
       #~(modify-phases %standard-phases
-          (add-after 'unpack 'fix-pytest-config
-            (lambda _
-              ;; Drop test coverage requirements.
-              (substitute* "pyproject.toml"
-                (("--cov(-[^ ]*)?=[^ ]*") ""))))
           (add-after 'unpack 'fix-version
             (lambda _
               (call-with-output-file "skmisc/_version.py"