diff --git a/build.sbt b/build.sbt
index f3c6eb9..be4f30b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -13,7 +13,7 @@ val CirceVersion = "0.14.3"
 val CommonsIoVersion = "2.4"
 val ExtsVersion = "1.61.1"
 val JacksonVersion = "2.14.1"
-val Log4jVersion = "2.19.0"
+val Log4jVersion = "2.21.1"
 val MonixVersion = "3.4.1"
 val PlayJsonVersion = "2.10.0-RC7"
 val PulsarVersion = "2.10.3"