diff --git a/data.json b/data.json
index ec6a76c..1bf7987 100644
--- a/data.json
+++ b/data.json
@@ -7,7 +7,7 @@
       "pages": 336,
       "isbn": "9781466862678",
       "startDate": "2022-01-14",
-      "endDate": null
+      "endDate": "2022-12-26"
     },
     {
       "title": "Shadows of Self",