diff --git a/.github/workflows/draft-release-notes-workflow.yml b/.github/workflows/draft-release-notes-workflow.yml
index 794d7412..a383b346 100644
--- a/.github/workflows/draft-release-notes-workflow.yml
+++ b/.github/workflows/draft-release-notes-workflow.yml
@@ -16,6 +16,6 @@ jobs:
         with:
           config-name: draft-release-notes-config.yml
           tag: (None)
-          version: 2.16.0.0
+          version: 2.18.0.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/build.gradle b/build.gradle
index 88cd0248..237a866f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -12,7 +12,7 @@ buildscript {
         opensearch_group = "org.opensearch"
 
         isSnapshot = "true" == System.getProperty("build.snapshot", "true")
-        opensearch_version = System.getProperty("opensearch.version", "2.16.0-SNAPSHOT")
+        opensearch_version = System.getProperty("opensearch.version", "2.18.0-SNAPSHOT")
         buildVersionQualifier = System.getProperty("build.version_qualifier", "")
         // 2.0.0-rc1-SNAPSHOT -> 2.0.0.0-rc1-SNAPSHOT
         version_tokens = opensearch_version.tokenize('-')