diff --git a/openapi.json b/openapi.json
index 6b693ad..a8c91c5 100755
--- a/openapi.json
+++ b/openapi.json
@@ -9936,6 +9936,12 @@
           "metadata": {
             "$ref": "#/components/schemas/Metadata"
           },
+          "service_account_id": {
+            "description": "Identifier of the system-managed service account associated with this reader.\nPresent only for readers that are already paired.\nThis field is currently in beta and may change.",
+            "type": "string",
+            "format": "uuid",
+            "x-beta": true
+          },
           "created_at": {
             "description": "The timestamp of when the reader was created.",
             "type": "string",
diff --git a/src/SumUp/Models/Reader.g.cs b/src/SumUp/Models/Reader.g.cs
index 568cb5c..74ac989 100644
--- a/src/SumUp/Models/Reader.g.cs
+++ b/src/SumUp/Models/Reader.g.cs
@@ -22,6 +22,9 @@ public sealed partial class Reader
     /// <summary>Custom human-readable, user-defined name for easier identification of the reader.</summary>
     [JsonPropertyName("name")]
     public string Name { get; set; } = default!;
+    /// <summary>Identifier of the system-managed service account associated with this reader. Present only for readers that are already paired. This field is currently in beta and may change.</summary>
+    [JsonPropertyName("service_account_id")]
+    public Guid? ServiceAccountId { get; set; }
     /// <summary>The status of the reader object gives information about the current state of the reader. Possible values: - `unknown` - The reader status is unknown. - `processing` - The reader is created and waits for the physical device to confirm the pairing. - `paired` - The reader is paired with a merchant account and can be used with SumUp APIs. - `expired` - The pairing is expired and no longer usable with the account. The resource needs to get recreated.</summary>
     [JsonPropertyName("status")]
     public ReaderStatus Status { get; set; }