diff --git a/requirements.txt b/requirements.txt
index db768e8..9f40189 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@
 --index-url http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
 
 asn1crypto==0.24.0        # via cryptography
-attrs==18.2.0             # via pytest
+attrs==19.1.0             # via pytest
 certifi==2018.8.24        # via requests
 cffi==1.11.5              # via cryptography
 chardet==3.0.4            # via requests