diff --git a/requirements.txt b/requirements.txt
index 24449c4..6500b4c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -168,7 +168,7 @@ PyWavelets==1.0.0
 pywin32==223
 pywin32-ctypes==0.2.0
 pywinpty==0.5.4
-PyYAML==3.13
+PyYAML==5.1
 pyzmq==17.1.2
 qiniu==7.2.2
 QtAwesome==0.6.0