diff --git a/modules/claude-code.nix b/modules/claude-code.nix
index 73aa1be..e0218a7 100644
--- a/modules/claude-code.nix
+++ b/modules/claude-code.nix
@@ -205,7 +205,7 @@ in
 
     model = mkOption {
       type = types.str;
-      default = "opusplan";
+      default = "sonnet";
       description = "Default model to use with Claude Code";
     };