diff --git a/requirements.txt b/requirements.txt
index e046fc9..2053980 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 asn1crypto==0.24.0
-cryptography==2.1.4
+cryptography==3.2
 cycler==0.10.0
 decorator==4.4.2
 idna==2.6