diff --git a/Cargo.toml b/Cargo.toml
index 6c96633..bad571b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,3 +28,8 @@ getrandom = { version = "0.2.4", features = ["js"] }
 
 [target.'cfg(windows)'.build-dependencies]
 winres = "0.1.12"
+
+[profile.release]
+lto = true
+opt-level = 's'
+