diff --git a/Cargo.toml b/Cargo.toml
index 3823fa7..3883df3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,4 +3,10 @@ name = "fractions"
 version = "0.1.0"
 edition = "2024"
 
+[profile.release]
+opt-level = 3
+
+[lints.rust]
+warnings = "deny"
+
 [dependencies]