diff --git a/dev.requirements.txt b/dev.requirements.txt
index 2abe529..c8ffe74 100644
--- a/dev.requirements.txt
+++ b/dev.requirements.txt
@@ -6,7 +6,7 @@ certifi==2019.11.28
 cffi==1.14.0
 chardet==3.0.4
 coverage==5.0.3
-cryptography==2.8
+cryptography==3.2
 distlib==0.3.0
 docutils==0.16
 filelock==3.0.12