diff --git a/build.sbt b/build.sbt
index 9d10f2687..fea31f856 100644
--- a/build.sbt
+++ b/build.sbt
@@ -317,7 +317,7 @@ lazy val testServer = (projectMatrix in file("testing/server"))
     name := "testing-server",
     libraryDependencies ++= Seq(
       akkaHttp,
-      "ch.megard" %% "akka-http-cors" % "1.2.0",
+      "ch.megard" %% "akka-http-cors" % "1.3.1",
       akkaStreams
     ),
     // the test server needs to be started before running any backend tests