diff --git a/package-lock.json b/package-lock.json
index 73f1cbba..dd8976e1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@modelcontextprotocol/sdk",
-  "version": "1.7.0",
+  "version": "1.8.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@modelcontextprotocol/sdk",
-      "version": "1.7.0",
+      "version": "1.8.0",
       "license": "MIT",
       "dependencies": {
         "content-type": "^1.0.5",
@@ -15,7 +15,7 @@
         "eventsource": "^3.0.2",
         "express": "^5.0.1",
         "express-rate-limit": "^7.5.0",
-        "pkce-challenge": "^4.1.0",
+        "pkce-challenge": "^5.0.0",
         "raw-body": "^3.0.0",
         "zod": "^3.23.8",
         "zod-to-json-schema": "^3.24.1"
@@ -5416,9 +5416,9 @@
       }
     },
     "node_modules/pkce-challenge": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/pkce-challenge/-/pkce-challenge-4.1.0.tgz",
-      "integrity": "sha512-ZBmhE1C9LcPoH9XZSdwiPtbPHZROwAnMy+kIFQVrnMCxY4Cudlz3gBOpzilgc0jOgRaiT3sIWfpMomW2ar2orQ==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/pkce-challenge/-/pkce-challenge-5.0.0.tgz",
+      "integrity": "sha512-ueGLflrrnvwB3xuo/uGob5pd5FN7l0MsLf0Z87o/UQmRtwjvfylfc9MurIxRAWywCYTgrvpXBcqjV4OfCYGCIQ==",
       "license": "MIT",
       "engines": {
         "node": ">=16.20.0"
diff --git a/package.json b/package.json
index e2d8b3d7..86fd9d6d 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "eventsource": "^3.0.2",
     "express": "^5.0.1",
     "express-rate-limit": "^7.5.0",
-    "pkce-challenge": "^4.1.0",
+    "pkce-challenge": "^5.0.0",
     "raw-body": "^3.0.0",
     "zod": "^3.23.8",
     "zod-to-json-schema": "^3.24.1"
diff --git a/tsconfig.json b/tsconfig.json
index dc96ff04..cedbaaae 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -12,7 +12,11 @@
     "forceConsistentCasingInFileNames": true,
     "resolveJsonModule": true,
     "isolatedModules": true,
-    "skipLibCheck": true
+    "skipLibCheck": true,
+    "baseUrl": ".",
+    "paths": {
+      "pkce-challenge": ["node_modules/pkce-challenge/dist/index.node"]
+    }
   },
   "include": ["src/**/*"],
   "exclude": ["node_modules", "dist"]