diff --git a/src/types.ts b/src/types.ts
index 0cf7132..de8cd72 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -321,7 +321,7 @@ export interface Detention {
       id: number;
       name: string;
     };
-  };
+  } | null;
   lesson_pupil_behaviour: {
     reason: string;
   };
@@ -330,7 +330,7 @@ export interface Detention {
     first_name: string;
     last_name: string;
     title: string;
-  };
+  } | null;
   detention_type: {
     name: string;
   };