diff --git a/zstackbuild/pypi_source/requirements.txt b/zstackbuild/pypi_source/requirements.txt
index 868c255d7e..b5d33c9361 100644
--- a/zstackbuild/pypi_source/requirements.txt
+++ b/zstackbuild/pypi_source/requirements.txt
@@ -27,7 +27,7 @@ Routes==2.1
 simplejson==3.7.3
 six==1.9.0
 termcolor==1.1.0
-urllib3==1.10.4
+urllib3==1.26.5
 virtualenv==12.1.1
 websockify==0.9.0
 Werkzeug==0.10.4