diff --git a/requirements.txt b/requirements.txt
index 8664ad9..7225e9d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 numpy>=1.16.2
 torch==1.0.1.post2
 torchgeometry>=0.1.2
-PyYAML==5.1.1
+PyYAML==5.4
 configargparse
 smplx
 pillow