diff --git a/requirements.txt b/requirements.txt
index 6393bbb..bce8e9d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+urllib3=1.23
 alembic==1.7.5
 APScheduler==3.8.1
 astroid==2.9.1