diff --git a/requirements.txt b/requirements.txt
index 90d63ac..0562afd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ catboost==0.4.1
 certifi==2018.10.15
 cffi==1.11.5
 chardet==3.0.4
-cryptography==2.3.1
+cryptography==3.2
 emoji==0.5.1
 enum34==1.1.6
 future==0.16.0