diff --git a/readme.md b/readme.md
index 9a28af4..8cfb4e6 100644
--- a/readme.md
+++ b/readme.md
@@ -18,10 +18,10 @@ async function main() {
             toDate: '01/02/2000',
         })
     )
-    console.log(await client.getActivity(null))
+    console.log(await client.getActivity())
     console.log(await client.getStudentInfo())
-    console.log(await client.getActivity(null))
-    console.log(await client.getActivity(null))
+    console.log(await client.getActivity())
+    console.log(await client.getActivity())
 }
 
 main()