diff --git a/requirements/base.txt b/requirements/base.txt
index 416f416..2e53ffe 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -2,4 +2,4 @@ certifi==2018.1.18
 chardet==3.0.4
 idna==2.6
 requests==2.18.4
-urllib3==1.24.2
+urllib3==1.26.5
diff --git a/requirements/test.txt b/requirements/test.txt
index 25f85ac..c29969b 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -23,7 +23,7 @@ simplegeneric==0.8.1
 six==1.11.0
 traitlets==4.3.2
 typing==3.6.4
-urllib3==1.24.2
+urllib3==1.26.5
 vcrpy==1.11.1
 virtualenv==15.1.0
 wcwidth==0.1.7