diff --git a/requirements.txt b/requirements.txt
index 20f35519fd..debf0b2d78 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ billiard==4.1.0
     # via celery
 btrees==5.0
     # via zodb
-cachetools==5.2.0
+cachetools==5.3.1
     # via large-image
 cairocffi==0.9.0
     # via