diff --git a/build.sbt b/build.sbt
index c19597127..0f85e9748 100644
--- a/build.sbt
+++ b/build.sbt
@@ -20,7 +20,7 @@ val nlpcraftVer = "1.0.0"
 // Common libraries.
 val scalaMajVer = "3"
 val scalaMinVer = "2.2"
-val log4jVer = "2.21.1"
+val log4jVer = "2.24.1"
 val scalaLoggingVer = "3.9.5"
 val orgAntlr4Ver = "4.13.0"
 val jlineVer = "3.26.3"