diff --git a/requirements.txt b/requirements.txt
index 4104b91..957cbee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ backcall==0.1.0
 certifi==2019.11.28
 cffi==1.13.2
 chardet==3.0.4
-cryptography==2.8
+cryptography==3.2
 cycler==0.10.0
 decorator==4.4.1
 emcee==3.0.1