diff --git a/build.sbt b/build.sbt
index 38c7f3a..da85eb4 100644
--- a/build.sbt
+++ b/build.sbt
@@ -39,7 +39,7 @@ libraryDependencies ++= Seq(
   "org.apache.pekko" %% "pekko-cluster" % pekkoVersion % Test,
   "org.apache.pekko" %% "pekko-testkit" % pekkoVersion % Test,
   "org.scalatest" %% "scalatest" % "3.2.19" % Test,
-  "ch.qos.logback" % "logback-classic" % "1.3.14" % Test
+  "ch.qos.logback" % "logback-classic" % "1.5.9" % Test
 )
 
 Compile / unmanagedSourceDirectories ++= {