diff --git a/requirements.txt b/requirements.txt
index 074db9bb..71b262a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,5 +18,5 @@ pycparser==2.18           # via cffi
 pyjwt==1.5.3              # via -r requirements.in
 requests==2.20.0          # via -r requirements.in
 six==1.11.0               # via cryptography
-urllib3==1.22             # via requests
+urllib3==1.24.2           # via requests
 werkzeug==0.15.3          # via -r requirements.in
diff --git a/requirements_test.txt b/requirements_test.txt
index 5584b826..2e29137d 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -31,7 +31,7 @@ requests==2.20.0          # via -r requirements.txt, responses
 responses==0.3.0          # via -r requirements_test.in
 six==1.11.0               # via -r requirements.txt, cryptography, mock, responses
 sortedcontainers==2.2.2   # via hypothesis
-urllib3==1.22             # via -r requirements.txt, requests
+urllib3==1.24.2           # via -r requirements.txt, requests
 werkzeug==0.15.3          # via -r requirements.txt
 
 # The following packages are considered to be unsafe in a requirements file: