diff --git a/requirements.txt b/requirements.txt
index 17be4f8..5441179 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ matplotlib==3.1.1
 numpy==1.17.2
 opencv-python==4.1.1.26
 Pillow==6.1.0
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 rospkg==1.1.10
 tensorflow-gpu==1.12.0