diff --git a/builder/frameworks/espidf.py b/builder/frameworks/espidf.py
index 2f48c99..577b868 100644
--- a/builder/frameworks/espidf.py
+++ b/builder/frameworks/espidf.py
@@ -1094,6 +1094,8 @@ def install_python_deps():
         return result
 
     deps = {
+        # https://github.com/platformio/platformio-core/issues/4614
+        "urllib3": "<2",
         # https://github.com/platformio/platform-espressif32/issues/635
         "cryptography": ">=2.1.4,<35.0.0",
         "future": ">=0.15.2",