diff --git a/requirements.txt b/requirements.txt
index d44183e..59b8e0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ cfn-flip==1.2.0
 chardet==3.0.4
 Click==7.0
 constantly==15.1.0
-cryptography==2.6.1
+cryptography==3.2
 docutils==0.14
 durationpy==0.5
 entrypoints==0.3