diff --git a/build.gradle b/build.gradle
index 72a0cd53d3..451aca4e33 100644
--- a/build.gradle
+++ b/build.gradle
@@ -56,7 +56,7 @@ repositories {
 }
 
 ext {
-    opensearch_version = System.getProperty("opensearch.version", "1.3.0-SNAPSHOT")
+    opensearch_version = System.getProperty("opensearch.version", "1.4.0-SNAPSHOT")
 }
 
 configurations.all {