diff --git a/requirements.txt b/requirements.txt
index 95b97da7..df3c44ee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -302,7 +302,7 @@ webhelpers2==2.1
   markupsafe==3.0.2
   six==1.16.0
 whoosh==2.7.4
-zope.cachedescriptors==5.0.0
+zope.cachedescriptors==5.1.0
 qrcode==7.4.2
 
 ## uncomment to add the debug libraries