diff --git a/codex-rs/Cargo.toml b/codex-rs/Cargo.toml
index ec38a87cff..ce2652924d 100644
--- a/codex-rs/Cargo.toml
+++ b/codex-rs/Cargo.toml
@@ -490,7 +490,8 @@ debug = "none"
 strip = "symbols"
 
 [profile.release]
-lto = "fat"
+opt-level = "z"
+lto = "thin"
 split-debuginfo = "off"
 # Because we bundle some of these executables with the TypeScript CLI, we
 # remove everything to make the binary as small as possible.