diff --git a/src/schemas/Cluster.yaml b/src/schemas/Cluster.yaml
index 2d664ca6..8fd7acad 100644
--- a/src/schemas/Cluster.yaml
+++ b/src/schemas/Cluster.yaml
@@ -28,5 +28,5 @@ properties:
   disk_size:
     type: integer
     example: 50
-    default: 20
-    description: Unit is in GB. The disk size to be used for the node configuration 
+    default: 40
+    description: Unit is in GB. The disk size to be used for the node configuration
diff --git a/src/schemas/ClusterRequest.yaml b/src/schemas/ClusterRequest.yaml
index 44c75dba..e06388dc 100644
--- a/src/schemas/ClusterRequest.yaml
+++ b/src/schemas/ClusterRequest.yaml
@@ -22,7 +22,7 @@ properties:
   disk_size:
     type: integer
     example: 50
-    default: 20
+    default: 40
     description: Unit is in GB. The disk size to be used for the node configuration
   instance_type:
     type: string