diff --git a/pyproject.toml b/pyproject.toml
index d5cc907..713f633 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,6 +53,7 @@ dependencies = [
   "requests<3",
   "sql-formatter<0.7",
   "sqlmakeuper<0.2",
+  "urllib3<2",
 ]
 dynamic = [
   "version",