diff --git a/requirements.txt b/requirements.txt
index 1cf1896..56e30a2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ certifi==2020.4.5.1
 cffi==1.14.0
 chardet==3.0.4
 click==7.1.2
-cryptography==2.9.2
+cryptography==3.2
 cytoolz==0.10.1
 decorator==4.4.2
 eth-abi==2.1.1