diff --git a/Cargo.toml b/Cargo.toml
index ba578c3b2e..bd502294af 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ codegen-units = 16
 debug = false
 inherits = "release"
 lto = false
-opt-level = 1
+opt-level = "z"
 strip = "none"
 
 [workspace]