diff --git a/bindings/Cargo.toml b/bindings/Cargo.toml
index 8dcc3014dd95..0ebbdcbd5f72 100644
--- a/bindings/Cargo.toml
+++ b/bindings/Cargo.toml
@@ -16,11 +16,12 @@ resolver = "2"
 # lto = "fat"
 
 # debug = true
-# opt-level = 'z'
+opt-level = 'z'
 
 # Strip debug symbols
 strip = "symbols"
 
+codegen-units = 1
 
 [profile.dev.package."*"]
 debug-assertions = false