diff --git a/data-prepper-core/build.gradle b/data-prepper-core/build.gradle
index 9d175ea11d..555ba47f37 100644
--- a/data-prepper-core/build.gradle
+++ b/data-prepper-core/build.gradle
@@ -38,7 +38,7 @@ dependencies {
         exclude group: 'commons-logging', module: 'commons-logging'
     }
     implementation 'software.amazon.cloudwatchlogs:aws-embedded-metrics:2.0.0-beta-1'
-    testImplementation 'org.apache.logging.log4j:log4j-jpl:2.17.0'
+    testImplementation 'org.apache.logging.log4j:log4j-jpl:2.20.0'
     testImplementation testLibs.spring.test
     implementation libs.armeria.core
     implementation libs.armeria.grpc