diff --git a/platform.py b/platform.py
index 58e1b53..1ce1bb4 100644
--- a/platform.py
+++ b/platform.py
@@ -47,7 +47,7 @@ class Espressif32Platform(PlatformBase):
             self.packages["framework-arduinoespressif32"]["optional"] = False
             self.packages["framework-arduinoespressif32-libs"]["optional"] = False
             # use latest espressif Arduino libs
-            URL = "https://raw.githubusercontent.com/espressif/arduino-esp32/master/package/package_esp32_index.template.json"
+            URL = "https://raw.githubusercontent.com/espressif/arduino-esp32/idf-release/v5.3/package/package_esp32_index.template.json"
             packjdata = requests.get(URL).json()
             dyn_lib_url = packjdata['packages'][0]['tools'][0]['systems'][0]['url']
             self.packages["framework-arduinoespressif32-libs"]["version"] = dyn_lib_url