diff --git a/requirements-dev.txt b/requirements-dev.txt
index 43960e77..4da8ab9b 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -102,7 +102,7 @@ terminado==0.8.1
 testpath==0.3.1
 tornado==4.5.3
 traitlets==4.3.2
-urllib3==1.22
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.14.1
diff --git a/requirements.txt b/requirements.txt
index 43960e77..4da8ab9b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -102,7 +102,7 @@ terminado==0.8.1
 testpath==0.3.1
 tornado==4.5.3
 traitlets==4.3.2
-urllib3==1.22
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.14.1
diff --git a/requirements/production.txt b/requirements/production.txt
index 43960e77..4da8ab9b 100644
--- a/requirements/production.txt
+++ b/requirements/production.txt
@@ -102,7 +102,7 @@ terminado==0.8.1
 testpath==0.3.1
 tornado==4.5.3
 traitlets==4.3.2
-urllib3==1.22
+urllib3==1.26.5
 wcwidth==0.1.7
 webencodings==0.5.1
 Werkzeug==0.14.1