diff --git a/leie/requirements.txt b/leie/requirements.txt
index 580c62e..75b366b 100644
--- a/leie/requirements.txt
+++ b/leie/requirements.txt
@@ -8,7 +8,7 @@ py==1.4.34
 pytest==3.1.1
 pytest-cov==2.5.1
 python-dateutil==2.6.0
-PyYAML==3.12
+PyYAML==5.4
 requests==2.17.3
 simplejson==3.11.1
 six==1.10.0