diff --git a/requirements.txt b/requirements.txt
index 0864b80..1c34721 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ envs==1.3
 future==0.18.2
 idna==2.9
 jmespath==0.10.0
-pycryptodome==3.3.1
+pycryptodome==3.6.6
 python-dateutil==2.8.1
 python-jose-cryptodome==1.3.2
 pytz==2020.1