diff --git a/repository/src/main/java/org/apache/atlas/repository/store/graph/v2/EntityGraphRetriever.java b/repository/src/main/java/org/apache/atlas/repository/store/graph/v2/EntityGraphRetriever.java
index 8e4a1777fe..47d16210e1 100644
--- a/repository/src/main/java/org/apache/atlas/repository/store/graph/v2/EntityGraphRetriever.java
+++ b/repository/src/main/java/org/apache/atlas/repository/store/graph/v2/EntityGraphRetriever.java
@@ -1034,7 +1034,7 @@ private AtlasEntityHeader mapVertexToAtlasEntityHeader2(AtlasVertex entityVertex
         AtlasEntityType entityType = typeRegistry.getEntityTypeByName(typeName);
 
         if (entityType != null) {
-            entityType.getHeaderAttributes().values().stream().parallel().forEach(headerAttribute->{
+            entityType.getHeaderAttributes().values().forEach(headerAttribute->{
                 try {
                     Object attrValue = getVertexAttribute(entityVertex, headerAttribute);
                     if (attrValue != null) {