diff --git a/setup.py b/setup.py
index 902c972..8c17b09 100644
--- a/setup.py
+++ b/setup.py
@@ -58,7 +58,7 @@ def doit():
               "guppy.sets",
           ],
           ext_modules=[setsc, heapyc],
-          python_requires='>=3.7',
+          python_requires='>=3.8',
           classifiers=[
               "Programming Language :: Python :: 3",
               "Programming Language :: Python :: Implementation :: CPython",