diff --git a/build.gradle.kts b/build.gradle.kts
index cc63199f..5ded3ad6 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -99,7 +99,7 @@ dependencies {
     implementation("com.mysql:mysql-connector-j")
     implementation("org.flywaydb:flyway-mysql")
 
-    implementation("net.logstash.logback:logstash-logback-encoder:8.1")
+    implementation("net.logstash.logback:logstash-logback-encoder:9.0")
     implementation("io.github.oshai:kotlin-logging-jvm:7.0.13")
 
     runtimeOnly("io.micrometer:micrometer-registry-prometheus")