diff --git a/build.sbt b/build.sbt
index 865919cd..398b0f2f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -66,7 +66,7 @@ lazy val root = (project in file("."))
       specs2 % "test",
       "net.logstash.logback" % "logstash-logback-encoder" % "7.4" exclude ("com.fasterxml.jackson.core", "jackson-databind"),
       // Transient dependency of Play. No newer version of Play 3.0.2 with this vulnerability fixed.
-      "ch.qos.logback" % "logback-classic" % "1.5.5",
+      "ch.qos.logback" % "logback-classic" % "1.5.6",
       "com.fasterxml.jackson.module" %% "jackson-module-scala" % "2.17.0"
     ),
     excludeDependencies ++= Seq(