diff --git a/build.sbt b/build.sbt
index c22ab4ae..6e4778da 100644
--- a/build.sbt
+++ b/build.sbt
@@ -98,7 +98,7 @@ lazy val lambda = crossProject(JSPlatform, JVMPlatform)
       "org.tpolecat" %%% "natchez-core" % natchezVersion,
       "io.circe" %%% "circe-scodec" % circeVersion,
       "io.circe" %%% "circe-jawn" % circeVersion,
-      "com.comcast" %%% "ip4s-core" % "3.7.0",
+      "com.comcast" %%% "ip4s-core" % "3.8.0",
       "org.scodec" %%% "scodec-bits" % "1.2.4",
       "org.scalameta" %%% "munit-scalacheck" % munitVersion % Test,
       "org.typelevel" %%% "munit-cats-effect" % munitCEVersion % Test,