diff --git a/README.md b/README.md
index b1ed746a..44d4023a 100644
--- a/README.md
+++ b/README.md
@@ -54,9 +54,8 @@ Develop locally
 -
 1. Clone code
 2. Run `pnpm i` to install dependencies
-3. Set environment variable `AUTH_URL` locally (not in production) to `http://localhost:3000/api/url` (_this is a temporary limitation of `next-auth` v5.0 Beta_)
-4. If necessary, install [Vercel CLI](https://vercel.com/docs/cli#installing-vercel-cli) and log in by running `vercel login`
-5. Run `vercel link` to connect the CLI to your project
+3. If necessary, install [Vercel CLI](https://vercel.com/docs/cli#installing-vercel-cli) and authenticate by running `vercel login`
+4. Run `vercel link` to connect the CLI to your project
 5. Run `vercel dev` to start dev server with Vercel-managed environment variables
 
 Further customization
diff --git a/package.json b/package.json
index 54ec1dcd..343886e5 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "jest-environment-jsdom": "^29.7.0",
     "nanoid": "^5.0.7",
     "next": "^14.2.3",
-    "next-auth": "5.0.0-beta.15",
+    "next-auth": "5.0.0-beta.18",
     "next-themes": "^0.3.0",
     "pg": "^8.11.5",
     "postcss": "8.4.38",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 7780396d..5192678c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -114,8 +114,8 @@ importers:
         specifier: ^14.2.3
         version: 14.2.3(@babel/core@7.24.5)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
       next-auth:
-        specifier: 5.0.0-beta.15
-        version: 5.0.0-beta.15(next@14.2.3(@babel/core@7.24.5)(react-dom@18.3.1(react@18.3.1))(react@18.3.1))(react@18.3.1)
+        specifier: 5.0.0-beta.18
+        version: 5.0.0-beta.18(next@14.2.3(@babel/core@7.24.5)(react-dom@18.3.1(react@18.3.1))(react@18.3.1))(react@18.3.1)
       next-themes:
         specifier: ^0.3.0
         version: 0.3.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
@@ -191,8 +191,8 @@ packages:
     resolution: {integrity: sha512-30iZtAPgz+LTIYoeivqYo853f02jBYSd5uGnGpkFV0M3xOt9aN73erkgYAmZU43x4VfqcnLxW9Kpg3R5LC4YYw==}
     engines: {node: '>=6.0.0'}
 
-  '@auth/core@0.28.0':
-    resolution: {integrity: sha512-/fh/tb/L4NMSYcyPoo4Imn8vN6MskcVfgESF8/ndgtI4fhD/7u7i5fTVzWgNRZ4ebIEGHNDbWFRxaTu1NtQgvA==}
+  '@auth/core@0.31.0':
+    resolution: {integrity: sha512-UKk3psvA1cRbk4/c9CkpWB8mdWrkKvzw0DmEYRsWolUQytQ2cRqx+hYuV6ZCsngw/xbj9hpmkZmAZEyq2g4fMg==}
     peerDependencies:
       '@simplewebauthn/browser': ^9.0.1
       '@simplewebauthn/server': ^9.0.2
@@ -3222,8 +3222,8 @@ packages:
   natural-compare@1.4.0:
     resolution: {integrity: sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==}
 
-  next-auth@5.0.0-beta.15:
-    resolution: {integrity: sha512-UQggNq8CDu3/w8CYkihKLLnRPNXel98K0j7mtjj9a6XTNYo4Hni8xg/2h1YhElW6vXE8mgtvmH11rU8NKw86jQ==}
+  next-auth@5.0.0-beta.18:
+    resolution: {integrity: sha512-x55L8wZb8PcPGCYA3e/l9tdpd7YL3FDuhas4W8pxq3PjrWJ9OoDxNN0otK9axJamJBbBgjfzTJjVQB6hXoe0ZQ==}
     peerDependencies:
       '@simplewebauthn/browser': ^9.0.1
       '@simplewebauthn/server': ^9.0.2
@@ -4327,7 +4327,7 @@ snapshots:
       '@jridgewell/gen-mapping': 0.3.5
       '@jridgewell/trace-mapping': 0.3.25
 
-  '@auth/core@0.28.0':
+  '@auth/core@0.31.0':
     dependencies:
       '@panva/hkdf': 1.1.1
       '@types/cookie': 0.6.0
@@ -8326,9 +8326,9 @@ snapshots:
 
   natural-compare@1.4.0: {}
 
-  next-auth@5.0.0-beta.15(next@14.2.3(@babel/core@7.24.5)(react-dom@18.3.1(react@18.3.1))(react@18.3.1))(react@18.3.1):
+  next-auth@5.0.0-beta.18(next@14.2.3(@babel/core@7.24.5)(react-dom@18.3.1(react@18.3.1))(react@18.3.1))(react@18.3.1):
     dependencies:
-      '@auth/core': 0.28.0
+      '@auth/core': 0.31.0
       next: 14.2.3(@babel/core@7.24.5)(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
       react: 18.3.1