diff --git a/requirements-dev.txt b/requirements-dev.txt
index 8beb0fd..3706b43 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -37,7 +37,7 @@ tqdm==4.41.1
 twine==3.1.1
 typed-ast==1.4.3
 typing-extensions==3.7.4.1
-urllib3==1.25.7
+urllib3==1.26.5
 virtualenv==16.7.9
 wcwidth==0.1.7
 webencodings==0.5.1
diff --git a/requirements.txt b/requirements.txt
index c254d80..bba87b7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,4 @@ idna==2.8
 pycparser==2.19
 requests==2.22.0
 six==1.13.0
-urllib3==1.25.7
+urllib3==1.26.5