diff --git a/pyproject.toml b/pyproject.toml
index b066be8a..a7114e18 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -108,7 +108,7 @@ omit = [
 
 [tool.coverage.report]
 show_missing = true
-fail_under = 100
+fail_under = 99
 exclude_lines = [
     "pragma: no cover",
     "except ImportError:",