diff -up python-OBD-0.7.0/setup.py.orig python-OBD-0.7.0/setup.py
--- python-OBD-0.7.0/setup.py.orig	2018-11-05 06:43:30.000000000 +0100
+++ python-OBD-0.7.0/setup.py	2019-03-25 18:47:36.462186010 +0100
@@ -25,5 +25,5 @@ setup(
     packages=find_packages(),
     include_package_data=True,
     zip_safe=False,
-    install_requires=["pyserial==3.*", "pint==0.7.*"],
+    install_requires=["pyserial>=3", "pint>=0.7"],
 )