diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7011716e..37b08dbf0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,11 +23,13 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.1.0/)
 
 ### Enhancements
 - Incrementally remove resources from workflow state during deprovisioning ([#898](https://github.com/opensearch-project/flow-framework/pull/898))
+- Increase default index replicas to 5 ([#916](https://github.com/opensearch-project/flow-framework/pull/916))
 
 ### Bug Fixes
 ### Infrastructure
 ### Documentation
 - Add query assist data summary agent into sample templates ([#875](https://github.com/opensearch-project/flow-framework/pull/875))
+
 ### Maintenance
 ### Refactoring
 - Update workflow state without using painless script ([#894](https://github.com/opensearch-project/flow-framework/pull/894))
diff --git a/src/main/java/org/opensearch/flowframework/indices/FlowFrameworkIndicesHandler.java b/src/main/java/org/opensearch/flowframework/indices/FlowFrameworkIndicesHandler.java
index f05a162ff..01240e544 100644
--- a/src/main/java/org/opensearch/flowframework/indices/FlowFrameworkIndicesHandler.java
+++ b/src/main/java/org/opensearch/flowframework/indices/FlowFrameworkIndicesHandler.java
@@ -82,7 +82,7 @@ public class FlowFrameworkIndicesHandler {
     private final ClusterService clusterService;
     private final EncryptorUtils encryptorUtils;
     private static final Map<String, AtomicBoolean> indexMappingUpdated = new HashMap<>();
-    private static final Map<String, Object> indexSettings = Map.of("index.auto_expand_replicas", "0-1");
+    private static final Map<String, Object> indexSettings = Map.of("index.auto_expand_replicas", "0-5");
     private final NamedXContentRegistry xContentRegistry;
     // Retries in case of simultaneous updates
     private static final int RETRIES = 5;