diff --git a/project.clj b/project.clj
index 993bb4f..b0361bc 100644
--- a/project.clj
+++ b/project.clj
@@ -4,7 +4,7 @@
   :license {:name "Apache License, Version 2.0"
             :url "http://www.apache.org/licenses/LICENSE-2.0.html"}
   :dependencies [[org.clojure/clojure "1.12.4"]
-                 [net.logstash.logback/logstash-logback-encoder "4.11"]
+                 [net.logstash.logback/logstash-logback-encoder "9.0"]
                  [org.clojure/tools.logging "0.6.0"]
                  [cheshire "5.13.0"]
                  [org.slf4j/slf4j-api "1.7.36"]]