diff --git a/Cargo.toml b/Cargo.toml
index 9c7489d..38566a0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,6 +8,7 @@ strip = "symbols"
 opt-level = 3
 overflow-checks = true
 lto = true
+codegen-units = 1
 
 [lints.rust]
 unsafe_code = "forbid"