diff --git a/requirements-lint.txt b/requirements-lint.txt
index d58bd4bf1b..6903d7735d 100644
--- a/requirements-lint.txt
+++ b/requirements-lint.txt
@@ -25,5 +25,5 @@ requests==2.21.0
 six==1.11.0
 text-unidecode==1.2
 typed-ast==1.3.1
-urllib3==1.23
+urllib3==1.24.3
 wrapt==1.10.11
diff --git a/requirements-lint_to-freeze.txt b/requirements-lint_to-freeze.txt
index 2dc59c9aeb..4370315d0c 100644
--- a/requirements-lint_to-freeze.txt
+++ b/requirements-lint_to-freeze.txt
@@ -1,2 +1,3 @@
 -r requirements-test.txt
 mypy
+urllib3==1.24.3
diff --git a/requirements-test.txt b/requirements-test.txt
index c26f4ed9ab..291201bf27 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -25,5 +25,5 @@ python-dateutil==2.7.2
 requests==2.21.0
 six==1.11.0
 text-unidecode==1.2
-urllib3==1.23
+urllib3==1.24.3
 wrapt==1.10.11
diff --git a/requirements-test_to-freeze.txt b/requirements-test_to-freeze.txt
index d499ed9add..3edc3e360e 100644
--- a/requirements-test_to-freeze.txt
+++ b/requirements-test_to-freeze.txt
@@ -8,3 +8,4 @@ pylint==1.9.2
 pytest-cov
 pytest-timeout==1.2.1
 pytest==3.3.1
+urllib3==1.24.3
diff --git a/requirements.txt b/requirements.txt
index 06ed1f973a..1bd0e5ce31 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -124,7 +124,7 @@ Twisted==17.9.0
 txaio==2.8.2
 txtorcon==0.20.0
 u-msgpack-python==2.5.0
-urllib3==1.23
+urllib3==1.24.3
 watchdog==0.8.3
 web3==4.2.1
 websocket-client==0.47.0
diff --git a/requirements_to-freeze.txt b/requirements_to-freeze.txt
index dff4fa008c..635315ad07 100644
--- a/requirements_to-freeze.txt
+++ b/requirements_to-freeze.txt
@@ -51,6 +51,7 @@ tabulate
 token_bucket==0.2.0
 Twisted==17.9.0
 txaio==2.8.2
+urllib3==1.24.3
 web3==4.2.1
 zope.interface==4.4.2
 zxcvbn-python