diff --git a/requirements.txt b/requirements.txt
index dacbebc..11dec82 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ click==6.7
 codeclimate-test-reporter==0.2.3
 coverage==4.4.1
 coveralls==1.2.0
-cryptography==1.7.2
+cryptography==3.2
 docopt==0.6.2
 flasgger==0.8.0
 Flask==0.12.2