diff --git a/requirement.txt b/requirement.txt
index ef52638..37924ec 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -4,7 +4,7 @@ attrs==18.2.0
 certifi==2018.10.15
 cffi==1.11.5
 chardet==3.0.4
-cryptography==2.3.1
+cryptography==3.2
 idna==2.7
 lxml==4.2.5
 mock==2.0.0