diff --git a/platformio.ini b/platformio.ini
index ffe5b99..ea7848c 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -21,8 +21,7 @@ build_flags=
   -D NO_GLOBAL_ARDUINOOTA
 ; -D ENABLE_CORS
 lib_deps =
-  https://github.com/PaulStoffregen/Time
-  https://github.com/gmag11/NtpClient
+  NtpClientLib@>=2.5.1,<3.0.0
   ArduinoJson@>=6.0.0,<7.0.0
-  https://github.com/me-no-dev/ESPAsyncWebServer
-  https://github.com/me-no-dev/AsyncTCP
+  ESP Async WebServer@>=1.2.0,<2.0.0
+  AsyncTCP@>=1.0.3,<2.0.0