diff --git a/Cargo.toml b/Cargo.toml
index 89197a6..0817c4c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,6 +42,7 @@ opt-level = "s"
 panic = "abort"
 lto = true
 strip = true
+codegen-units = 1
 
 [profile.dev]
 debug = 0