diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index f9dfffdbf..c53117420 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -99,7 +99,7 @@ jobs:
 
     name: Build and Test k-NN Plugin on MacOS
     needs: Get-CI-Image-Tag
-    runs-on: macos-12
+    runs-on: macos-13
 
     steps:
       - name: Checkout k-NN
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7dda5ede..ed2cfea00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,7 +21,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Bug Fixes
 ### Infrastructure
 * Updated C++ version in JNI from c++11 to c++17 [#2259](https://github.com/opensearch-project/k-NN/pull/2259)
-* Upgrade bytebuddy and objenesis version to match OpenSearch core [#2279](https://github.com/opensearch-project/k-NN/pull/2279)
+* Upgrade bytebuddy and objenesis version to match OpenSearch core and, update github ci runner for macos [#2279](https://github.com/opensearch-project/k-NN/pull/2279)
 ### Documentation
 ### Maintenance
 * Select index settings based on cluster version[2236](https://github.com/opensearch-project/k-NN/pull/2236)