We deselected some test so the coverage dropped as well.
https://github.com/repo-helper/hatch-requirements-txt/issues/62

--- hatch-requirements-txt-0.4.1/tox.ini.orig
+++ hatch-requirements-txt-0.4.1/tox.ini
@@ -204,7 +204,7 @@
 [coverage:run]
 
 [coverage:report]
-fail_under = 97.5
+fail_under = 96
 show_missing = True
 exclude_lines =
     raise AssertionError