diff --git a/build.sbt b/build.sbt
index 6509f4d72..f914a998a 100644
--- a/build.sbt
+++ b/build.sbt
@@ -974,7 +974,7 @@ lazy val prometheusBackend = (projectMatrix in file("observability/prometheus-ba
   .settings(
     name := "prometheus-backend",
     libraryDependencies ++= Seq(
-      "io.prometheus" % "prometheus-metrics-core" % "1.3.3"
+      "io.prometheus" % "prometheus-metrics-core" % "1.3.4"
     ),
     scalaTest
   )