diff --git a/pyproject.toml b/pyproject.toml
index bd2536b..02e7365 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = ">=3.7.2,<4"
-urllib3 = "^1.26.9"
+urllib3 = ">=1.26.9,<3.0.0"
 python-dateutil = "^2.8.2"
 
 [tool.poetry.dev-dependencies]