diff --git a/specification/resources/databases/databases_create_cluster.yml b/specification/resources/databases/databases_create_cluster.yml
index cee50a91..f065dc01 100644
--- a/specification/resources/databases/databases_create_cluster.yml
+++ b/specification/resources/databases/databases_create_cluster.yml
@@ -45,6 +45,7 @@ requestBody:
             version: "14"
             region: nyc3
             size: db-s-2vcpu-4gb
+            storage_size_mib: 61440
             num_nodes: 2
             tags:
               - production
@@ -57,6 +58,7 @@ requestBody:
             region: nyc3
             size: db-s-2vcpu-4gb
             num_nodes: 2
+            storage_size_mib: 61440
             tags:
               - production
             rules:
diff --git a/specification/resources/databases/databases_update_clusterSize.yml b/specification/resources/databases/databases_update_clusterSize.yml
index abf03905..03adabd5 100644
--- a/specification/resources/databases/databases_update_clusterSize.yml
+++ b/specification/resources/databases/databases_update_clusterSize.yml
@@ -29,6 +29,7 @@ requestBody:
       example:
         size: db-s-4vcpu-8gb
         num_nodes: 3
+        storage_size_mib: 163840
 
 responses:
   '202':
diff --git a/specification/resources/databases/examples/curl/databases_create_cluster.yml b/specification/resources/databases/examples/curl/databases_create_cluster.yml
index e398fd32..a7b9d8b7 100644
--- a/specification/resources/databases/examples/curl/databases_create_cluster.yml
+++ b/specification/resources/databases/examples/curl/databases_create_cluster.yml
@@ -3,5 +3,5 @@ source: |-
   curl -X POST \
     -H "Content-Type: application/json" \
     -H "Authorization: Bearer $DIGITALOCEAN_TOKEN" \
-    -d '{"name": "backend", "engine": "pg", "version": "14", "region": "nyc3", "size": "db-s-2vcpu-4gb", "num_nodes": 2, "tags": ["production"]}' \
+    -d '{"name": "backend", "engine": "pg", "version": "14", "region": "nyc3", "size": "db-s-2vcpu-4gb", "num_nodes": 2, "storage_size_mib": 61440, "tags": ["production"]}' \
     "https://api.digitalocean.com/v2/databases"
diff --git a/specification/resources/databases/examples/curl/databases_update_clusterSize.yml b/specification/resources/databases/examples/curl/databases_update_clusterSize.yml
index 38eb3b8e..1adc9bae 100644
--- a/specification/resources/databases/examples/curl/databases_update_clusterSize.yml
+++ b/specification/resources/databases/examples/curl/databases_update_clusterSize.yml
@@ -3,5 +3,5 @@ source: |-
   curl -X PUT \
   -H "Content-Type: application/json" \
   -H "Authorization: Bearer $DIGITALOCEAN_TOKEN" \
-  -d '{"size":"db-s-4vcpu-8gb", "num_nodes":3}' \
+  -d '{"size":"db-s-4vcpu-8gb", "num_nodes":3, "storage_size_mib":163840}' \
   "https://api.digitalocean.com/v2/databases/9cc10173-e9ea-4176-9dbc-a4cee4c4ff30/resize" 
diff --git a/specification/resources/databases/examples/go/databases_create_cluster.yml b/specification/resources/databases/examples/go/databases_create_cluster.yml
index 6749fd09..468afe92 100644
--- a/specification/resources/databases/examples/go/databases_create_cluster.yml
+++ b/specification/resources/databases/examples/go/databases_create_cluster.yml
@@ -20,6 +20,7 @@ source: |-
           Region:     "nyc3",
           SizeSlug:   "db-s-2vcpu-4gb",
           NumNodes:   2,
+          StorageSizeMiB : 61440,
       }
 
       cluster, _, err := client.Databases.Create(ctx, createRequest)
diff --git a/specification/resources/databases/examples/go/databases_update_clusterSize.yml b/specification/resources/databases/examples/go/databases_update_clusterSize.yml
index 9fa79953..91f504d1 100644
--- a/specification/resources/databases/examples/go/databases_update_clusterSize.yml
+++ b/specification/resources/databases/examples/go/databases_update_clusterSize.yml
@@ -14,5 +14,6 @@ source: |-
       resizeRequest := &godo.DatabaseResizeRequest{
           SizeSlug: "db-s-4vcpu-8gb",
           NumNodes: 3,
+          StorageSizeMib: 163840,
       }
   }
diff --git a/specification/resources/databases/examples/python/databases_create_cluster.yml b/specification/resources/databases/examples/python/databases_create_cluster.yml
index b7a2ad4e..6867c543 100644
--- a/specification/resources/databases/examples/python/databases_create_cluster.yml
+++ b/specification/resources/databases/examples/python/databases_create_cluster.yml
@@ -12,6 +12,7 @@ source: |-
     "region": "nyc3",
     "size": "db-s-2vcpu-4gb",
     "num_nodes": 2,
+    "storage_size_mib": 61440,
     "tags": [
       "production"
     ]
diff --git a/specification/resources/databases/examples/python/databases_update_clusterSize.yml b/specification/resources/databases/examples/python/databases_update_clusterSize.yml
index 58001ef3..b5d910d3 100644
--- a/specification/resources/databases/examples/python/databases_update_clusterSize.yml
+++ b/specification/resources/databases/examples/python/databases_update_clusterSize.yml
@@ -7,7 +7,8 @@ source: |-
 
   req = {
     "size": "db-s-4vcpu-8gb",
-    "num_nodes": 3
+    "num_nodes": 3,
+    "storage_size_mib": 163840
   }
 
   update_resp = client.databases.update_cluster_size(database_cluster_uuid="a7a8bas", body=req)
diff --git a/specification/resources/databases/models/database_cluster.yml b/specification/resources/databases/models/database_cluster.yml
index 66720cd7..59e564b3 100644
--- a/specification/resources/databases/models/database_cluster.yml
+++ b/specification/resources/databases/models/database_cluster.yml
@@ -133,6 +133,12 @@ properties:
     description: >-
       A timestamp referring to the date when the particular version will no longer be available for creating new
       clusters. If null, the version does not have an end of availability timeline.
+  storage_size_mib:
+    type: integer
+    example: 61440
+    description: >-
+      Additional storage added to the cluster, in MiB. If null, no additional storage is added to the cluster, beyond
+      what is provided as a base amount from the 'size' and any previously added additional storage.
 
 
 required:
diff --git a/specification/resources/databases/models/database_cluster_resize.yml b/specification/resources/databases/models/database_cluster_resize.yml
index 31660db9..c3ba5e5b 100644
--- a/specification/resources/databases/models/database_cluster_resize.yml
+++ b/specification/resources/databases/models/database_cluster_resize.yml
@@ -13,6 +13,13 @@ properties:
       The number of nodes in the database cluster. Valid values are are 1-3.
       In addition to the primary node, up to two standby nodes may be added for
       highly available configurations.
+  storage_size_mib:
+    type: integer
+    example: 61440
+    description: >-
+      Additional storage added to the cluster, in MiB. If null, no additional storage is added to the cluster, beyond
+      what is provided as a base amount from the 'size' and any previously added additional storage.
+
 
 required:
   - size
diff --git a/specification/resources/databases/responses/database_cluster.yml b/specification/resources/databases/responses/database_cluster.yml
index 23ca6815..cb1f33ec 100644
--- a/specification/resources/databases/responses/database_cluster.yml
+++ b/specification/resources/databases/responses/database_cluster.yml
@@ -63,3 +63,4 @@ content:
         private_network_uuid: d455e75d-4858-4eec-8c95-da2f0a5f93a7
         version_end_of_life: '2023-11-09T00:00:00Z'
         version_end_of_availability: '2023-05-09T00:00:00Z'
+        storage_size_mib: 61440
diff --git a/specification/resources/databases/responses/database_clusters.yml b/specification/resources/databases/responses/database_clusters.yml
index e0496b14..44c918ad 100644
--- a/specification/resources/databases/responses/database_clusters.yml
+++ b/specification/resources/databases/responses/database_clusters.yml
@@ -61,3 +61,4 @@ content:
         private_network_uuid: d455e75d-4858-4eec-8c95-da2f0a5f93a7
         version_end_of_life: '2023-11-09T00:00:00Z'
         version_end_of_availability: '2023-05-09T00:00:00Z'
+        storage_size_mib: 61440