diff --git a/open-sse/services/ccBridgeTransforms.ts b/open-sse/services/ccBridgeTransforms.ts
index d13adbeacc..ff5da0fa7f 100644
--- a/open-sse/services/ccBridgeTransforms.ts
+++ b/open-sse/services/ccBridgeTransforms.ts
@@ -101,7 +101,7 @@ export interface InjectBillingHeaderOp {
    *   - static-zero: emit "00000" (relay endpoints don't validate)
    */
   cchAlgo: "sha256-first-user" | "xxhash64-body" | "static-zero";
-  /** Override the embedded `cc_version=` value. Defaults to `2.1.219`. */
+  /** Override the embedded `cc_version=` value. Defaults to CLAUDE_CODE_CLIENT_VERSION. */
   version?: string;
   /** Override its captured build revision. Defaults to a computed compatibility suffix. */
   buildRevision?: string;
diff --git a/tests/integration/chat-pipeline.test.ts b/tests/integration/chat-pipeline.test.ts
index a9568a0271..46e5e84ba1 100644
--- a/tests/integration/chat-pipeline.test.ts
+++ b/tests/integration/chat-pipeline.test.ts
@@ -689,7 +689,7 @@ test("chat pipeline applies Codex CLI fingerprint to OAuth responses requests",
   assert.equal(call.headers.Version, getCodexClientVersion());
   assert.equal(call.headers["Openai-Beta"], "responses=experimental");
   assert.equal(call.headers["X-Codex-Beta-Features"], "responses_websockets");
-  assert.equal(call.headers["User-Agent"], "codex-cli/0.144.1 (Windows 10.0.26200; x64)");
+  assert.equal(call.headers["User-Agent"], "codex-cli/0.146.0 (Windows 10.0.26200; x64)");
   assert.equal(call.headers["x-codex-window-id"], "conv_codex_fingerprint:0");
   assert.ok(call.headers["x-client-request-id"], "expected Codex request id header");
   assert.ok(call.headers["x-codex-turn-metadata"], "expected Codex turn metadata header");