diff --git a/build.sbt b/build.sbt
index 6b0f0df3..f6c4d591 100644
--- a/build.sbt
+++ b/build.sbt
@@ -35,7 +35,7 @@ libraryDependencies += "com.typesafe.akka"  %% "akka-actor-typed" % akkaVersion
 // libraryDependencies += "com.typesafe.akka"          %% "akka-slf4j"       % akkaVersion
 libraryDependencies += "com.typesafe.scala-logging" %% "scala-logging"   % "3.9.5"
 libraryDependencies += "com.github.blemale"         %% "scaffeine"       % "5.2.1" % "compile"
-libraryDependencies += "ch.qos.logback"              % "logback-classic" % "1.4.8"
+libraryDependencies += "ch.qos.logback"              % "logback-classic" % "1.4.9"
 libraryDependencies += "com.typesafe.play"          %% "play-json"       % "2.10.0-RC9"
 libraryDependencies += "io.kamon"                   %% "kamon-core"      % kamonVersion
 libraryDependencies += "io.kamon"                   %% "kamon-influxdb"  % kamonVersion