diff --git a/modbus-requirements.txt b/modbus-requirements.txt
index 9384460e6..f67b70381 100644
--- a/modbus-requirements.txt
+++ b/modbus-requirements.txt
@@ -1 +1 @@
-pyModbusTCP==0.1.5
\ No newline at end of file
+pyModbusTCP==0.1.8
\ No newline at end of file