diff --git a/support/RocAlphaGo-develop/requirements.txt b/support/RocAlphaGo-develop/requirements.txt
old mode 100755
new mode 100644
index f08033a..ddc82cf
--- a/support/RocAlphaGo-develop/requirements.txt
+++ b/support/RocAlphaGo-develop/requirements.txt
@@ -3,7 +3,7 @@ h5py==2.6.0
 Keras==1.2.0
 numpy==1.11.2
 pygtp==0.3
-PyYAML==3.12
+PyYAML==5.4
 scipy==0.18.1
 sgf==0.5
 six==1.10.0