diff --git a/requirements.txt b/requirements.txt
index ff4daed..52b37f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ boto==2.48.0
 bz2file==0.98
 certifi==2016.2.28
 cffi==1.10.0
-cryptography==2.3
+cryptography==3.2
 cycler==0.10.0
 Cython==0.26.1
 decorator==4.1.2