diff --git a/benchmarks/model-email.js b/benchmarks/model-email.js
index ea8ee8c1..fe0755d1 100644
--- a/benchmarks/model-email.js
+++ b/benchmarks/model-email.js
@@ -4,7 +4,7 @@ const { checkPy, pyBlock, TASKS } = require('./robustness-audit.js');
 const skill = fs.readFileSync(path.join(__dirname, '..', 'skills', 'ponytail', 'SKILL.md'), 'utf8');
 const email = TASKS.find(t => t.name === 'email');
 const N = Number(process.env.ME_N) || 100;
-const MODELS = (process.env.ME_MODELS || 'gpt-4.1-mini,gpt-5.4-mini').split(',');
+const MODELS = (process.env.ME_MODELS || 'gpt-4o-mini,gpt-4o').split(',');
 
 const kv = Object.fromEntries(fs.readFileSync(path.join(__dirname, '..', '.env'), 'utf8')
   .split(/\r?\n/).filter(l => l.includes('=') && !l.trim().startsWith('#'))
diff --git a/benchmarks/robustness-audit.js b/benchmarks/robustness-audit.js
index 16b9e996..f5fb2fa1 100644
--- a/benchmarks/robustness-audit.js
+++ b/benchmarks/robustness-audit.js
@@ -20,7 +20,7 @@ function python() {
 }
 
 const N = Number(process.env.AUDIT_N) || 20;
-const MODEL = process.env.AUDIT_MODEL || 'gpt-5.4-mini';
+const MODEL = process.env.AUDIT_MODEL || 'gpt-4o-mini';
 const ROOT = path.join(__dirname, '..');
 let kv = {};
 try {
diff --git a/ponytail-mcp/index.js b/ponytail-mcp/index.js
index 49783981..74328ecb 100644
--- a/ponytail-mcp/index.js
+++ b/ponytail-mcp/index.js
@@ -9,7 +9,7 @@ import { z } from "zod";
 
 import { MODES, buildInstructions, resolveMode } from "./instructions.js";
 
-const server = new McpServer({ name: "ponytail", version: "0.1.0" });
+const server = new McpServer({ name: "ponytail", version: "4.8.3" });
 
 const modeArg = z
   .enum(MODES)