diff --git a/src/lib.rs b/src/lib.rs
index ced32fe..26cb9ca 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -32,6 +32,8 @@
     unused_import_braces
 )]
 
+#![forbid(unsafe_code)]
+
 pub use tungstenite;
 
 mod compat;