diff --git a/requirements.txt b/requirements.txt
index 8bff781..d98175a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ botocore==1.4.93
 certifi==2017.4.17
 cffi==1.10.0
 click==6.7
-cryptography==1.5
+cryptography==3.2
 docutils==0.13.1
 elasticsearch==5.3.0
 elasticsearch-dsl==5.2.0