diff --git a/variants/t-echo/platformio.ini b/variants/t-echo/platformio.ini
index 42b03b688..cefb8f342 100644
--- a/variants/t-echo/platformio.ini
+++ b/variants/t-echo/platformio.ini
@@ -14,5 +14,5 @@ lib_deps =
   ${nrf52840_base.lib_deps}
   https://github.com/meshtastic/GxEPD2#afce87a97dda1ac31d8a28dc8fa7c6f55dc96a61
   adafruit/Adafruit BusIO@^1.13.2
-  lewisxhe/PCF8563_Library@^0.0.1
+  https://github.com/lewisxhe/PCF8563_Library.git#91399f254651537c5ab338dacc7c10d1f087fd09
 ;upload_protocol = fs