diff --git a/build.gradle b/build.gradle
index 2ba1770..e324b04 100644
--- a/build.gradle
+++ b/build.gradle
@@ -134,7 +134,7 @@ ext {
     kafkaVersion = "3.5.0"
     apacheCommonsLangVersion = "3.17.0"
     slf4jVersion = "1.7.36"
-    openSearchVersion = "2.16.0"
+    openSearchVersion = "2.18.0"
 
     testcontainersVersion = "1.20.4"
 }