diff --git a/build.gradle b/build.gradle
index eb36d36bc..11aac7806 100644
--- a/build.gradle
+++ b/build.gradle
@@ -31,9 +31,11 @@ import org.opensearch.gradle.testclusters.StandaloneRestIntegTestTask
 buildscript {
     ext {
         opensearch_group = "org.opensearch"
-        opensearch_version = System.getProperty("opensearch.version", "1.1.0-SNAPSHOT")
-        common_utils_version = System.getProperty("common_utils.version", "1.1.0.0")
-        job_scheduler_version = System.getProperty("job_scheduler.version", "1.1.0.0")
+        opensearch_version = System.getProperty("opensearch.version", "1.0.0")
+        // 1.0.0 -> 1.0.0.0, and 1.0.0-SNAPSHOT -> 1.0.0.0-SNAPSHOT
+        opensearch_build = opensearch_version.replaceAll(/(\.\d)([^\d]*)$/, '$1.0$2')
+        common_utils_version = System.getProperty("common_utils.version", opensearch_build)
+        job_scheduler_version = System.getProperty("job_scheduler.version", opensearch_build)
     }
 
     repositories {
@@ -62,11 +64,6 @@ repositories {
     jcenter()
 }
 
-ext {
-    opensearchVersion = System.getProperty("opensearch.version", "1.1.0")
-    isSnapshot = "true" == System.getProperty("build.snapshot", "true")
-}
-
 apply plugin: 'java'
 apply plugin: 'idea'
 apply plugin: 'opensearch.opensearchplugin'
@@ -75,6 +72,10 @@ apply plugin: 'base'
 apply plugin: 'jacoco'
 apply plugin: 'eclipse'
 
+ext {
+    isSnapshot = "true" == System.getProperty("build.snapshot", "true")
+}
+
 allprojects {
     group = 'org.opensearch'