diff --git a/pkgs/by-name/co/codex/package.nix b/pkgs/by-name/co/codex/package.nix
index a49f28ad465f..5f5b0d2f649f 100644
--- a/pkgs/by-name/co/codex/package.nix
+++ b/pkgs/by-name/co/codex/package.nix
@@ -14,18 +14,18 @@
 }:
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "codex";
-  version = "0.65.0";
+  version = "0.66.0";
 
   src = fetchFromGitHub {
     owner = "openai";
     repo = "codex";
     tag = "rust-v${finalAttrs.version}";
-    hash = "sha256-1zh6ifwavP3RFqQbHIClEQ4cKRQ5LdU61LReA6+HSW8=";
+    hash = "sha256-IO5bZOkMcpIB0751d9PV32C21CIFuZPa/p8tVmoNwuA=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/codex-rs";
 
-  cargoHash = "sha256-XzqEI8wpI5g1+u+AOWiZYOzCVhwysMtHKPDpcfu2HAU=";
+  cargoHash = "sha256-ilzYG2W7xdpdCnrKN1LIrMvAjCAVJx6106sbApkH/60=";
 
   nativeBuildInputs = [
     installShellFiles