diff --git a/setup.py b/setup.py
index 88e248b..8fb4546 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
     install_requires=[
         'pymodbus>=2.4.0; python_version == "3.8"',
         'pymodbus>=2.4.0; python_version == "3.9"',
-        'pymodbus>=3.0.2,<3.7.0; python_version >= "3.10"',
+        'pymodbus>=3.0.2,<3.8.0; python_version >= "3.10"',
         "pyserial",
         "crcmod"],
     extras_require={