diff --git a/graphql/graphiql.html b/graphql/graphiql.html
index f4457cf..6d43292 100644
--- a/graphql/graphiql.html
+++ b/graphql/graphiql.html
@@ -182,8 +182,8 @@
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+    <script src="https://unpkg.com/graphql-ws@5.11.3/umd/graphql-ws.min.js"
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