diff --git a/genai-function-calling/vercel-ai/README.md b/genai-function-calling/vercel-ai/README.md
index 0f180f6..1e8be07 100644
--- a/genai-function-calling/vercel-ai/README.md
+++ b/genai-function-calling/vercel-ai/README.md
@@ -48,7 +48,7 @@ npm run start -- --mcp
 ## Notes
 
 The LLM should generate something like "The latest stable version of
-Elasticsearch is 8.18.0," unless it hallucinates. Run it again, if you see
+Elasticsearch is 8.19.3," unless it hallucinates. Run it again, if you see
 something else.
 
 Vercel AI's OpenTelemetry instrumentation only produces traces (not logs or
diff --git a/genai-function-calling/vercel-ai/index.js b/genai-function-calling/vercel-ai/index.js
index 6a9a317..13e4d5e 100644
--- a/genai-function-calling/vercel-ai/index.js
+++ b/genai-function-calling/vercel-ai/index.js
@@ -17,7 +17,7 @@ const model = process.env.CHAT_MODEL || 'gpt-4o-mini';
 
 const getLatestElasticsearchVersion = tool({
     description: 'Get the latest version of Elasticsearch',
-    parameters: z.object({
+    inputSchema: z.object({
         majorVersion: z.number().optional().describe('Major version to filter by (e.g. 7, 8). Defaults to latest'),
     }),
     execute: async ({majorVersion}) => {
@@ -55,7 +55,7 @@ async function runAgent(tools) {
         // If using reasoning models, remove the format rewards from output. Non-reasoning models will not have
         // them making it effectively a no-op.
         model: wrapLanguageModel({
-            model: openai(model),
+            model: openai.chat(model),
             middleware: [extractReasoningMiddleware({ tagName: 'think' })],
         }),
         messages: [{role: 'user', content: "What is the latest version of Elasticsearch 8?"}],
diff --git a/genai-function-calling/vercel-ai/mcp.js b/genai-function-calling/vercel-ai/mcp.js
index e09f8d0..3654c10 100644
--- a/genai-function-calling/vercel-ai/mcp.js
+++ b/genai-function-calling/vercel-ai/mcp.js
@@ -34,7 +34,7 @@ async function mcpServerMain(tools) {
         server.tool(
             toolName,
             tool.description,
-            tool.parameters.shape,
+            tool.inputSchema.shape,
             async (params) => {
                 try {
                     const result = await tool.execute(params);
diff --git a/genai-function-calling/vercel-ai/package.json b/genai-function-calling/vercel-ai/package.json
index 468d616..1d9f60d 100644
--- a/genai-function-calling/vercel-ai/package.json
+++ b/genai-function-calling/vercel-ai/package.json
@@ -10,11 +10,11 @@
     "start": "node --env-file .env --import @elastic/opentelemetry-node --import ./telemetry.js index.js"
   },
   "dependencies": {
-    "ai": "^4.3.11",
-    "@ai-sdk/azure": "^1.3.21",
-    "@ai-sdk/openai": "^1.3.20",
-    "@modelcontextprotocol/sdk": "^1.10.2",
-    "@elastic/opentelemetry-node": "^1",
-    "@arizeai/openinference-instrumentation-mcp": "^0.2.0"
+    "ai": "^5.0.35",
+    "@ai-sdk/azure": "^2.0.25",
+    "@ai-sdk/openai": "^2.0.25",
+    "@modelcontextprotocol/sdk": "^1.17.5",
+    "@elastic/opentelemetry-node": "^1.2.0",
+    "@arizeai/openinference-instrumentation-mcp": "^0.2.4"
   }
 }