diff --git a/setup.cfg b/setup.cfg
index 6cf81cf..7c7fa84 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -22,6 +22,8 @@ classifiers =
     Programming Language :: Python
     Topic :: Scientific/Engineering :: Physics
     Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
diff --git a/setup.py b/setup.py
index 936b6e5..7ede8d6 100644
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@ def get_contents(filename):
 
 setup(
     name=project,
-    python_requires='>=3.6',
+    python_requires='>=3.7',
     long_description=get_contents('README.rst'),
     long_description_content_type='text/x-rst',
     version=get_init_property('__version__'),