diff --git a/requirements.txt b/requirements.txt
index 4958468..f244643 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ multidict==4.5.2
 numpy==1.15.4
 opencv-python==3.4.4.19
 protobuf==3.6.1
-PyYAML==3.13
+PyYAML==5.4
 requests==2.20.1
 scipy==1.1.0
 six==1.11.0