diff --git a/dotfiles/codex/config.toml b/dotfiles/codex/config.toml
index 0d854753..b93ab8af 100644
--- a/dotfiles/codex/config.toml
+++ b/dotfiles/codex/config.toml
@@ -1,5 +1,5 @@
 model = "gpt-5.4"
-model_reasoning_effort = "xhigh"
+model_reasoning_effort = "high"
 personality = "pragmatic"
 [projects."/home/imalison/Projects/nixpkgs"]
 trust_level = "trusted"