diff --git a/data-prepper-expression/build.gradle b/data-prepper-expression/build.gradle
index 828121d0e4..880a33c342 100644
--- a/data-prepper-expression/build.gradle
+++ b/data-prepper-expression/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 'javax.inject:javax.inject:1'
     implementation('org.springframework:spring-core:5.3.22') {