diff --git a/src/constants.ts b/src/constants.ts
index 0ca3626..8380724 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -42,7 +42,7 @@ export const XAI_RESPONSES_PATH = "/responses";
 export const XAI_CLIENT_IDENTIFIER = "grok-shell";
 // The proxy version-gates this header. Values below the current floor
 // (1.0.13+ as of 2026-09-30) return HTTP 426 Upgrade Required.
-export const XAI_CLIENT_VERSION = "1.0.62";
+export const XAI_CLIENT_VERSION = "1.0.70";
 export const XAI_USER_AGENT = `grok-shell/${XAI_CLIENT_VERSION} (macos; aarch64)`;
 export const XAI_CLIENT_MODE = "interactive";
 // Required by the CLI chat proxy auth middleware on known proxy URLs.
diff --git a/src/responses-adapter.test.ts b/src/responses-adapter.test.ts
index 81bf40b..259f938 100644
--- a/src/responses-adapter.test.ts
+++ b/src/responses-adapter.test.ts
@@ -10,9 +10,9 @@ import { createXaiResponsesAdapter } from "./index.js";
 // not to re-export more internals to reach them.
 const RESPONSES_PATH = "/responses";
 const CLIENT_IDENTIFIER = "grok-shell";
-const CLIENT_VERSION = "1.0.62";
+const CLIENT_VERSION = "1.0.70";
 const CLIENT_MODE = "interactive";
-const USER_AGENT = "grok-shell/1.0.62 (macos; aarch64)";
+const USER_AGENT = "grok-shell/1.0.70 (macos; aarch64)";
 const TOKEN_AUTH = "xai-grok-cli";
 const AUTHENTICATE_RESPONSE = "authenticate-response";