diff --git a/sangria/build.sbt b/sangria/build.sbt
index 8f969bca..58781396 100644
--- a/sangria/build.sbt
+++ b/sangria/build.sbt
@@ -7,7 +7,7 @@ scalacOptions ++= Seq("-Ywarn-unused", "-deprecation")
 assembly / mainClass := Some("Server")
 
 libraryDependencies ++= Seq(
-  "org.sangria-graphql" %% "sangria" % "3.5.2",
+  "org.sangria-graphql" %% "sangria" % "4.0.2",
   "org.sangria-graphql" %% "sangria-akka-http-circe" % "0.0.3",
   "com.typesafe.akka" %% "akka-actor" % "2.8.4",
   "com.typesafe.akka" %% "akka-stream" % "2.8.4",