diff --git a/lessons/08-mcp-advanced/solutions/package-lock.json b/lessons/08-mcp-advanced/solutions/package-lock.json
index ccd64b19..14004323 100644
--- a/lessons/08-mcp-advanced/solutions/package-lock.json
+++ b/lessons/08-mcp-advanced/solutions/package-lock.json
@@ -5,7 +5,7 @@
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       "": {
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             "openai": "^4.96.2",
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@@ -19,25 +19,74 @@
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+         "resolved": "https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.26.0.tgz",
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          "license": "MIT",
          "dependencies": {
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+            "ajv-formats": "^3.0.1",
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             "cors": "^2.8.5",
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-            "express": "^5.0.1",
-            "express-rate-limit": "^7.5.0",
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+            "express-rate-limit": "^8.2.1",
+            "hono": "^4.11.4",
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-            "zod-to-json-schema": "^3.24.1"
+            "zod": "^3.25 || ^4.0",
+            "zod-to-json-schema": "^3.25.1"
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          "engines": {
             "node": ">=18"
+         },
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+            "zod": "^3.25 || ^4.0"
+         },
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+            "@cfworker/json-schema": {
+               "optional": true
+            },
+            "zod": {
+               "optional": false
+            }
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+      "node_modules/@modelcontextprotocol/sdk/node_modules/zod": {
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+         "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",
+         "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
+         "license": "MIT",
+         "funding": {
+            "url": "https://github.com/sponsors/colinhacks"
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+      },
+      "node_modules/@modelcontextprotocol/sdk/node_modules/zod-to-json-schema": {
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+         "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.25.1.tgz",
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+         "license": "ISC",
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          }
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@@ -96,6 +145,39 @@
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+         "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.17.1.tgz",
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+         "license": "MIT",
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+            "fast-uri": "^3.0.1",
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+            "url": "https://github.com/sponsors/epoberezkin"
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+         "resolved": "https://registry.npmjs.org/ajv-formats/-/ajv-formats-3.0.1.tgz",
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+         "license": "MIT",
+         "dependencies": {
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             "content-type": "^1.0.5",
-            "debug": "^4.4.0",
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-            "raw-body": "^3.0.0",
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+            "url": "https://opencollective.com/express"
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@@ -393,18 +479,19 @@
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+         "resolved": "https://registry.npmjs.org/express/-/express-5.2.1.tgz",
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          "dependencies": {
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-            "body-parser": "^2.2.0",
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             "cookie": "^0.7.1",
             "cookie-signature": "^1.2.1",
             "debug": "^4.4.0",
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+         "version": "8.2.1",
+         "resolved": "https://registry.npmjs.org/express-rate-limit/-/express-rate-limit-8.2.1.tgz",
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          "license": "MIT",
+         "dependencies": {
+            "ip-address": "10.0.1"
+         },
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@@ -446,9 +536,31 @@
             "url": "https://github.com/sponsors/express-rate-limit"
          },
          "peerDependencies": {
-            "express": "^4.11 || 5 || ^5.0.0-beta.1"
+            "express": ">= 4.11"
          }
       },
+      "node_modules/fast-deep-equal": {
+         "version": "3.1.3",
+         "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+         "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
+         "license": "MIT"
+      },
+      "node_modules/fast-uri": {
+         "version": "3.1.0",
+         "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.0.tgz",
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+         "funding": [
+            {
+               "type": "github",
+               "url": "https://github.com/sponsors/fastify"
+            },
+            {
+               "type": "opencollective",
+               "url": "https://opencollective.com/fastify"
+            }
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+         "license": "BSD-3-Clause"
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          "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-2.1.0.tgz",
@@ -636,20 +748,33 @@
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+      "node_modules/hono": {
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+         "resolved": "https://registry.npmjs.org/hono/-/hono-4.11.9.tgz",
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+         "license": "MIT",
+         "engines": {
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-            "inherits": "2.0.4",
-            "setprototypeof": "1.2.0",
-            "statuses": "2.0.1",
-            "toidentifier": "1.0.1"
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+            "inherits": "~2.0.4",
+            "setprototypeof": "~1.2.0",
+            "statuses": "~2.0.2",
+            "toidentifier": "~1.0.1"
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+         "funding": {
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+            "url": "https://opencollective.com/express"
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+            "url": "https://opencollective.com/express"
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+         "engines": {
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+         "resolved": "https://registry.npmjs.org/jose/-/jose-6.1.3.tgz",
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+         "license": "MIT",
+         "funding": {
+            "url": "https://github.com/sponsors/panva"
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+      "node_modules/json-schema-traverse": {
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+         "license": "MIT",
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@@ -1295,15 +1463,6 @@
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-         "version": "3.24.5",
-         "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.24.5.tgz",
-         "integrity": "sha512-/AuWwMP+YqiPbsJx5D6TfgRTc4kTLjsh5SOcd4bLsfUg2RcEXrFMJl1DGgdHy2aCfsIA/cr/1JM0xcB2GZji8g==",
-         "license": "ISC",
-         "peerDependencies": {
-            "zod": "^3.24.1"
-         }
       }
    }
 }
diff --git a/lessons/08-mcp-advanced/solutions/package.json b/lessons/08-mcp-advanced/solutions/package.json
index 802ecb3c..6a57d885 100644
--- a/lessons/08-mcp-advanced/solutions/package.json
+++ b/lessons/08-mcp-advanced/solutions/package.json
@@ -13,7 +13,7 @@
       "build"
    ],
    "dependencies": {
-      "@modelcontextprotocol/sdk": "^1.8.0",
+      "@modelcontextprotocol/sdk": "^1.26.0",
       "express": "^5.0.1",
       "openai": "^4.96.2",
       "type": "^2.7.3",