diff --git a/build.sbt b/build.sbt
index a191fdf..02a2562 100644
--- a/build.sbt
+++ b/build.sbt
@@ -16,7 +16,7 @@ ThisBuild / crossScalaVersions := Seq(Scala213, "2.12.20", "3.3.6")
 ThisBuild / scalaVersion := Scala213 // the default Scala
 
 val asyncHttpClientVersion = "2.12.3"
-val http4sVersion = "0.23.18"
+val http4sVersion = "0.23.31"
 val http4sServletVersion = "0.23.11"
 val munitCatsEffectVersion = "1.0.7"
 val servletApiVersion = "3.1.0"