diff --git a/src/cp437.rs b/src/cp437.rs
index 696c0506..1d7e5ee0 100644
--- a/src/cp437.rs
+++ b/src/cp437.rs
@@ -187,6 +187,7 @@ mod test {
     }
 
     #[test]
+    #[allow(unknown_lints)] // invalid_from_utf8 was added in rust 1.72 
     #[allow(invalid_from_utf8)]
     fn example_slice() {
         use super::FromCp437;