diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 268e222..d6267a1 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -6,7 +6,7 @@ junit = "5.10.0"
 commons-lang3 = "org.apache.commons:commons-lang3:3.13.0"
 junit-api = { module = "org.junit.jupiter:junit-jupiter-api", version.ref = "junit" }
 junit-engine = { module = "org.junit.jupiter:junit-jupiter-engine", version.ref = "junit" }
-log4j = "org.apache.logging.log4j:log4j-core:2.20.0"
+log4j = "org.apache.logging.log4j:log4j-core:2.21.1"
 mockito = "org.mockito:mockito-junit-jupiter:5.6.0"
 
 [plugins]