diff --git a/requirement.txt b/requirement.txt
index 3173907..1023edd 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -61,7 +61,7 @@ pyspider==0.3.10
 pytest==3.7.1
 python-scrapyd-api==2.1.2
 pywin32==223.1
-PyYAML==3.13
+PyYAML==5.4
 queuelib==1.5.0
 redis==2.10.6
 requests==2.19.1