diff --git a/.github/workflows/opensearch-observability-test-and-build-workflow.yml b/.github/workflows/opensearch-observability-test-and-build-workflow.yml
index cac4fbcfc..bacdabdd6 100644
--- a/.github/workflows/opensearch-observability-test-and-build-workflow.yml
+++ b/.github/workflows/opensearch-observability-test-and-build-workflow.yml
@@ -3,7 +3,7 @@ name: Test and Build OpenSearch Observability Backend Plugin
 on: [pull_request, push]
 
 env:
-  OPENSEARCH_VERSION: '1.2.2-SNAPSHOT'
+  OPENSEARCH_VERSION: '1.2.3-SNAPSHOT'
   OPENSEARCH_BRANCH: '1.2'
   COMMON_UTILS_BRANCH: 'main'
 
diff --git a/opensearch-observability/build.gradle b/opensearch-observability/build.gradle
index 648a5a57d..f084521d9 100644
--- a/opensearch-observability/build.gradle
+++ b/opensearch-observability/build.gradle
@@ -8,7 +8,7 @@ import java.util.concurrent.Callable
 
 buildscript {
     ext {
-        opensearch_version = System.getProperty("opensearch.version", "1.2.2-SNAPSHOT")
+        opensearch_version = System.getProperty("opensearch.version", "1.2.3-SNAPSHOT")
         // 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)