diff --git a/build.gradle b/build.gradle
index e29e30d..1c4df99 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@
 buildscript {
     ext {
         opensearch_group = "org.opensearch"
-        opensearch_version = System.getProperty("opensearch.version", "3.0.0-SNAPSHOT")
+        opensearch_version = System.getProperty("opensearch.version", "2.19.0-SNAPSHOT")
         is_snapshot = "true" == System.getProperty("build.snapshot", "true")
         build_version_qualifier = System.getProperty("build.version_qualifier", "")