diff --git a/src/examples/client/simpleStreamableHttp.ts b/src/examples/client/simpleStreamableHttp.ts
index 63efdd2f..4bcaf94c 100644
--- a/src/examples/client/simpleStreamableHttp.ts
+++ b/src/examples/client/simpleStreamableHttp.ts
@@ -16,7 +16,7 @@ import {
   ResourceListChangedNotificationSchema,
   ElicitRequestSchema,
 } from '../../types.js';
-import { Ajv } from 'ajv';
+import Ajv from "ajv";
 
 // Create readline interface for user input
 const readline = createInterface({
@@ -215,7 +215,7 @@ async function connect(url?: string): Promise<void> {
       const required = schema.required || [];
 
       // Set up AJV validator for the requested schema
-      const ajv = new Ajv({ strict: false, validateFormats: true });
+      const ajv = new Ajv();
       const validate = ajv.compile(schema);
 
       let attempts = 0;
@@ -352,7 +352,7 @@ async function connect(url?: string): Promise<void> {
         if (!isValid) {
           console.log('❌ Validation errors:');
           validate.errors?.forEach(error => {
-            console.log(`  - ${error.instancePath || 'root'}: ${error.message}`);
+            console.log(`  - ${error.dataPath || 'root'}: ${error.message}`);
           });
 
           if (attempts < maxAttempts) {
diff --git a/src/server/index.ts b/src/server/index.ts
index 6a819db8..506589d9 100644
--- a/src/server/index.ts
+++ b/src/server/index.ts
@@ -33,7 +33,8 @@ import {
   ServerResult,
   SUPPORTED_PROTOCOL_VERSIONS,
 } from "../types.js";
-import { Ajv } from "ajv";
+import Ajv from "ajv";
+import type { ValidateFunction } from "ajv";
 
 export type ServerOptions = ProtocolOptions & {
   /**
@@ -321,7 +322,7 @@ export class Server<
     // Validate the response content against the requested schema if action is "accept"
     if (result.action === "accept" && result.content) {
       try {
-        const ajv = new Ajv({ strict: false, validateFormats: true });
+        const ajv = new Ajv();
         
         const validate = ajv.compile(params.requestedSchema);
         const isValid = validate(result.content);