diff --git a/platformio.ini b/platformio.ini
index 4ecb51a..436e488 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -19,6 +19,7 @@ lib_deps =
 	https://github.com/fabianonline/simplelist.git
 	https://github.com/fabianonline/NTPClient.git
 	ESP8266WebServer
+	ErriezCRC32
 
 [env:ota]
 upload_port = 10.10.2.78