diff --git a/pyproject.toml b/pyproject.toml
index 1f449a7..af30f48 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,6 +26,7 @@ requires = [
     "conan>=2.0",
     "setuptools>=45",
     "lipomerge>=0.1.1",
+    "urllib3<2.0"  # urllib3>=2.0 not work for building python3.7 wheels (https://github.com/urllib3/urllib3/issues/2168)
 ]
 build-backend = "setuptools.build_meta"