diff --git a/Cargo.toml b/Cargo.toml
index 0cdbe7a..b5a4dac 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,3 +16,7 @@ branch = "sen_dev"
 package = "filecoin-proofs"
 # version = "~11.0"
 default-features = false
+
+[profile.release]
+lto = true
+opt-level = 'z'