diff --git a/requirements.txt b/requirements.txt
index 7d96359..1be6da9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ cffi==1.11.5
 chardet==3.0.4
 click==7.1.1
 click-log==0.3.2
-cryptography==2.3.1
+cryptography==3.2
 cycler==0.10.0
 Cython==0.28.5
 deap==1.2.2