diff --git a/server/requirements.txt b/server/requirements.txt
index ecc9a7d..1a9e6ef 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -10,7 +10,7 @@ idna==2.7
 ipaddress==1.0.22
 pycparser==2.18
 pyOpenSSL==18.0.0
-PyYAML==3.13
+PyYAML==5.4
 requests==2.19.1
 six==1.11.0
 urllib3==1.23