diff --git a/requirements.txt b/requirements.txt
index d587495..7a9bffd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ certifi==2019.9.11
 cffi==1.12.3
 chardet==3.0.4
 cloudpickle==1.2.2
-cryptography==2.7
+cryptography==3.2
 decorator==4.4.0
 defusedxml==0.6.0
 docutils==0.15.2