diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -172,7 +172,7 @@ nbconvert==7.7.3
   traitlets==5.9.0
 orjson==3.10.3
 premailer==3.10.0
-  cachetools==5.3.2
+  cachetools==5.3.3
   cssselect==1.2.0
   cssutils==2.6.0
   lxml==4.9.3