diff --git a/build.sbt b/build.sbt
index 813e58c0..41b9c80d 100644
--- a/build.sbt
+++ b/build.sbt
@@ -92,7 +92,7 @@ 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" % "3.6.0",
+      "com.comcast" %%% "ip4s-core" % "3.7.0",
       "org.scodec" %%% "scodec-bits" % "1.2.1",
       "org.scalameta" %%% "munit-scalacheck" % munitVersion % Test,
       "org.typelevel" %%% "munit-cats-effect-3" % munitCEVersion % Test,