diff --git a/src/panet/requirements.txt b/src/panet/requirements.txt
index c07438c..966c14a 100644
--- a/src/panet/requirements.txt
+++ b/src/panet/requirements.txt
@@ -11,7 +11,7 @@ pycocotools==2.0.0
 pycparser==2.19
 pyparsing==2.3.1
 python-dateutil==2.8.0
-PyYAML==5.1
+PyYAML==5.4
 scipy==1.2.1
 six==1.12.0
 torch==0.4.0