diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d3111f..705d91f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Added
 
 - `googleMapsIntegrationKeyId` to `FormsAppBase`
+- `approvalGroups` to `ApprovalsFormsApp`
 
 ### Removed
 
diff --git a/OneBlink.SDK/models/ApprovalsFormsApp.cs b/OneBlink.SDK/models/ApprovalsFormsApp.cs
index d93c89e..3f57b95 100644
--- a/OneBlink.SDK/models/ApprovalsFormsApp.cs
+++ b/OneBlink.SDK/models/ApprovalsFormsApp.cs
@@ -1,18 +1,24 @@
-namespace OneBlink.SDK.Model
-{
-    public class ApprovalsFormsApp : FormsAppBase
-    {
-        public ApprovalsFormsApp()
-        {
-            this.type = "APPROVALS";
-        }
-        public FormsAppStylesBase styles
-        {
-            get; set;
-        }
-        public override string type
-        {
-            get;
-        }
-    }
+using System.Collections.Generic;
+
+namespace OneBlink.SDK.Model
+{
+    public class ApprovalsFormsApp : FormsAppBase
+    {
+        public ApprovalsFormsApp()
+        {
+            this.type = "APPROVALS";
+        }
+        public FormsAppStylesBase styles
+        {
+            get; set;
+        }
+        public override string type
+        {
+            get;
+        }
+        public List<string> approvalGroups
+        {
+            get; set;
+        }
+    }
 }
\ No newline at end of file