diff --git a/requirements.txt b/requirements.txt
index f1cd032..809b3a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ certifi==2018.11.29
 cffi==1.12.2
 chardet==3.0.4
 colorzero==1.1
-cryptography==2.6.1
+cryptography==3.2
 github3.py==1.3.0
 gpiozero==1.5.0
 idna==2.8