diff --git a/tests/regression/issue845.rs b/tests/regression/issue845.rs
index dcca55694..56037ae66 100644
--- a/tests/regression/issue845.rs
+++ b/tests/regression/issue845.rs
@@ -1,3 +1,5 @@
+#![allow(clippy::trait_duplication_in_bounds)] // https://github.com/rust-lang/rust-clippy/issues/8757
+
 use serde::{Deserialize, Deserializer};
 use std::convert::TryFrom;
 use std::fmt::{self, Display};