diff --git a/Cargo.toml b/Cargo.toml
index cb735d3c9..25d8e1cb8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -106,7 +106,7 @@ empty_structs_with_brackets = "warn"
 disallowed_methods = "deny"
 exit = "warn"
 get_unwrap = "warn"
-unwrap_used = "warn"
+unwrap_used = "deny"
 rc_buffer = "warn"
 rc_mutex = "warn"
 rest_pat_in_fully_bound_structs = "warn"