diff --git a/blocklists/allowed-sites.txt b/blocklists/allowed-sites.txt
index 597d083..ae795da 100644
--- a/blocklists/allowed-sites.txt
+++ b/blocklists/allowed-sites.txt
@@ -21,6 +21,9 @@ bugsnag.com
 # Downloading
 metal-tracker.com
 
+# Hoopla
+marvel-b1-cdn.bc0a.com
+
 # Microsoft Edge Extensions
 msedgeextensions.sf.tlu.dl.delivery.mp.microsoft.com