diff --git a/requirements.txt b/requirements.txt
index 04e43f1..4a8e221 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,5 @@ tornado==6.0.4
 isodate==0.6.0
 pytest==5.4.1
 schwifty==2020.11.0
-Cerberus==1.3.2
+Cerberus==1.3.5
 validator-collection==1.5.0
\ No newline at end of file