diff --git a/requirements.txt b/requirements.txt
index 8dee071..3f8cbcb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ cffi==1.14.0
 chardet==3.0.4
 Click==7.0
 colorama==0.4.3
-cryptography==2.9.2
+cryptography==3.3.2
 docutils==0.16
 idna==2.8
 importlib-metadata==2.0.0