diff --git a/build.sbt b/build.sbt
index f03e3e80..e8ca2d8b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -321,7 +321,7 @@ lazy val xray = crossProject(JSPlatform, JVMPlatform)
     libraryDependencies ++= Seq(
       "io.circe" %%% "circe-core" % "0.14.6",
       "co.fs2" %%% "fs2-io" % fs2Version,
-      "com.comcast" %%% "ip4s-core" % "3.4.0",
+      "com.comcast" %%% "ip4s-core" % "3.5.0",
       "org.scodec" %%% "scodec-bits" % "1.1.38"
     )
   )