diff --git a/requirements.txt b/requirements.txt
index 916a702..c38f25d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 django==1.6.10
 cryptography==2.5
 numpy==1.18.0
-pyyaml==3.13
+pyyaml==5.1