diff --git a/lib/obp60task/platformio.ini b/lib/obp60task/platformio.ini
index 6d163af..de67cea 100644
--- a/lib/obp60task/platformio.ini
+++ b/lib/obp60task/platformio.ini
@@ -9,7 +9,7 @@ board = nodemcu-32s
 lib_deps = 
     ${env.lib_deps}
     lib_deps =
-        blemasle/MCP23017 @^2.0.0
+        blemasle/MCP23017 @ 2.0.0
         adafruit/Adafruit BusIO @ 1.5.0
         zinggjm/GxEPD @ 3.1.0
         sstaub/Ticker @ 4.4.0