diff --git a/dev-requirements.txt b/dev-requirements.txt
index 1beb301..1fdf3f9 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -171,7 +171,7 @@ typing-extensions==3.7.4.3
     # via
     #   black
     #   mypy
-urllib3==1.26.2
+urllib3==1.26.3
     # via requests
 virtualenv==20.4.0
     # via tox
diff --git a/requirements.txt b/requirements.txt
index 98e044c..6a5cb8f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -117,7 +117,7 @@ thesmuggler==1.0.1
     # via -r requirements.in
 toml==0.10.2
     # via pre-commit
-urllib3==1.26.2
+urllib3==1.26.3
     # via requests
 virtualenv==20.4.0
     # via pre-commit