diff --git a/build.gradle b/build.gradle
index 48dd74e49..2eb0faa08 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,7 +13,7 @@ import java.util.function.Predicate
 
 buildscript {
     ext {
-        opensearch_version = System.getProperty("opensearch.version", "1.3.19-SNAPSHOT")
+        opensearch_version = System.getProperty("opensearch.version", "1.3.20-SNAPSHOT")
         // 1.1.0 -> 1.1.0.0, and 1.1.0-SNAPSHOT -> 1.1.0.0-SNAPSHOT
         opensearch_build = opensearch_version.replaceAll(/(\.\d+)([^\d]*)$/, '$1.0$2')
         notification_version = System.getProperty("notification.version", opensearch_build)