diff --git a/demo/server/package.json b/demo/server/package.json
index b10c5bc..f7d9b39 100644
--- a/demo/server/package.json
+++ b/demo/server/package.json
@@ -18,7 +18,7 @@
     "express": "^4.17.1",
     "graphql": "^16.6.0",
     "graphql-subscriptions": "^1.2.1",
-    "graphql-ws": "^5.5.5",
+    "graphql-ws": "^6.0.0",
     "typescript": "^4.7.4",
     "ws": "^8.4.2"
   },
diff --git a/demo/server/pnpm-lock.yaml b/demo/server/pnpm-lock.yaml
index 92d6dd8..a7409e8 100644
--- a/demo/server/pnpm-lock.yaml
+++ b/demo/server/pnpm-lock.yaml
@@ -30,8 +30,8 @@ importers:
         specifier: ^1.2.1
         version: 1.2.1(graphql@16.9.0)
       graphql-ws:
-        specifier: ^5.5.5
-        version: 5.16.0(graphql@16.9.0)
+        specifier: ^6.0.0
+        version: 6.0.6(graphql@16.9.0)(ws@8.18.0)
       typescript:
         specifier: ^4.7.4
         version: 4.9.5
@@ -62,12 +62,14 @@ packages:
 
   '@apollo/server-gateway-interface@1.1.1':
     resolution: {integrity: sha512-pGwCl/po6+rxRmDMFgozKQo2pbsSwE91TpsDBAOgf74CRDPXHHtM88wbwjab0wMMZh95QfR45GGyDIdhY24bkQ==}
+    deprecated: '@apollo/server-gateway-interface v1 is part of Apollo Server v4, which is deprecated and will transition to end-of-life on January 26, 2026. As long as you are already using a non-EOL version of Node.js, upgrading to v2 should take only a few minutes. See https://www.apollographql.com/docs/apollo-server/previous-versions for details.'
     peerDependencies:
       graphql: 14.x || 15.x || 16.x
 
   '@apollo/server@4.11.0':
     resolution: {integrity: sha512-SWDvbbs0wl2zYhKG6aGLxwTJ72xpqp0awb2lotNpfezd9VcAvzaUizzKQqocephin2uMoaA8MguoyBmgtPzNWw==}
     engines: {node: '>=14.16.0'}
+    deprecated: Apollo Server v4 is deprecated and will transition to end-of-life on January 26, 2026. As long as you are already using a non-EOL version of Node.js, upgrading to v5 should take only a few minutes. See https://www.apollographql.com/docs/apollo-server/previous-versions for details.
     peerDependencies:
       graphql: ^16.6.0
 
@@ -362,11 +364,24 @@ packages:
     peerDependencies:
       graphql: ^0.10.5 || ^0.11.3 || ^0.12.0 || ^0.13.0 || ^14.0.0 || ^15.0.0
 
-  graphql-ws@5.16.0:
-    resolution: {integrity: sha512-Ju2RCU2dQMgSKtArPbEtsK5gNLnsQyTNIo/T7cZNp96niC1x0KdJNZV0TIoilceBPQwfb5itrGl8pkFeOUMl4A==}
-    engines: {node: '>=10'}
+  graphql-ws@6.0.6:
+    resolution: {integrity: sha512-zgfER9s+ftkGKUZgc0xbx8T7/HMO4AV5/YuYiFc+AtgcO5T0v8AxYYNQ+ltzuzDZgNkYJaFspm5MMYLjQzrkmw==}
+    engines: {node: '>=20'}
     peerDependencies:
-      graphql: '>=0.11 <=16'
+      '@fastify/websocket': ^10 || ^11
+      crossws: ~0.3
+      graphql: ^15.10.1 || ^16
+      uWebSockets.js: ^20
+      ws: ^8
+    peerDependenciesMeta:
+      '@fastify/websocket':
+        optional: true
+      crossws:
+        optional: true
+      uWebSockets.js:
+        optional: true
+      ws:
+        optional: true
 
   graphql@16.9.0:
     resolution: {integrity: sha512-GGTKBX4SD7Wdb8mqeDLni2oaRGYQWjWHGKPQ24ZMnUtKfcsVoiv4uX8+LJr1K6U5VW2Lu1BwJnj7uiori0YtRw==}
@@ -998,9 +1013,11 @@ snapshots:
       graphql: 16.9.0
       iterall: 1.3.0
 
-  graphql-ws@5.16.0(graphql@16.9.0):
+  graphql-ws@6.0.6(graphql@16.9.0)(ws@8.18.0):
     dependencies:
       graphql: 16.9.0
+    optionalDependencies:
+      ws: 8.18.0
 
   graphql@16.9.0: {}