diff --git a/.coveragerc b/.coveragerc
index 7863806..c1093b8 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -3,6 +3,7 @@ source = promptum
 omit = tests/*
 
 [report]
+fail_under = 90
 exclude_lines =
     pragma: no cover
     if TYPE_CHECKING: