diff --git a/data-prepper-logstash-configuration/build.gradle b/data-prepper-logstash-configuration/build.gradle
index ace6524406..f6eff598e9 100644
--- a/data-prepper-logstash-configuration/build.gradle
+++ b/data-prepper-logstash-configuration/build.gradle
@@ -13,7 +13,7 @@ ext {
 }
 
 dependencies {
-    antlr 'org.antlr:antlr4:4.10.1'
+    antlr 'org.antlr:antlr4:4.11.1'
     implementation project(':data-prepper-api')
     implementation project(':data-prepper-plugins:date-processor')
     implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-yaml'