diff --git a/build.sbt b/build.sbt
index 414947b..cfc4160 100644
--- a/build.sbt
+++ b/build.sbt
@@ -6,7 +6,7 @@ val Version = new {
   val CatsMtl = "1.5.0"
   val Circe = "0.14.10"
   val Fs2 = "3.11.0"
-  val Http4s = "1.0.0-M42"
+  val Http4s = "1.0.0-M43"
   val Java = "17"
   val Log4Cats = "2.7.0"
   val Munit = "1.0.2"