diff --git a/app/src/full/java/com/topjohnwu/magisk/asyncs/UpdateRepos.java b/app/src/full/java/com/topjohnwu/magisk/asyncs/UpdateRepos.java
index a07c6ab9d..3566794f5 100644
--- a/app/src/full/java/com/topjohnwu/magisk/asyncs/UpdateRepos.java
+++ b/app/src/full/java/com/topjohnwu/magisk/asyncs/UpdateRepos.java
@@ -92,6 +92,10 @@ public class UpdateRepos {
                 req.addHeaders(Const.Key.IF_NONE_MATCH, etag);
         }
         ANResponse<JSONArray> res = req.build().executeForJSONArray();
+        // Network drop
+        if (res.getOkHttpResponse() == null)
+            return false;
+        // JSON not updated
         if (res.getOkHttpResponse().code() == HttpURLConnection.HTTP_NOT_MODIFIED)
             return false;
         // Current page is the last page