diff --git a/requirements.txt b/requirements.txt
index 748defb..c5f5d36 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ certifi==2019.3.9
 cffi==1.12.3
 chardet==3.0.4
 Click==7.0
-cryptography==2.6.1
+cryptography==3.2
 cycler==0.10.0
 Cython==0.28.5
 DAWG-Python==0.7.2