diff --git a/requirements.txt b/requirements.txt
index e6b96f9..cb26b23 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@
 #
 # SPDX-License-Identifier: MIT
 
-Adafruit-Blinka>=6.20.4
+Adafruit-Blinka>=7.0.0
 adafruit-circuitpython-busdevice
 adafruit-circuitpython-register
diff --git a/setup.py b/setup.py
index a99921b..5fb7e12 100644
--- a/setup.py
+++ b/setup.py
@@ -34,8 +34,9 @@
     # Author details
     author="Adafruit Industries",
     author_email="circuitpython@adafruit.com",
+    python_requires=">=3.7.0",
     install_requires=[
-        "Adafruit-Blinka>=6.20.4",
+        "Adafruit-Blinka>=7.0.0",
         "adafruit-circuitpython-busdevice",
         "adafruit-circuitpython-register",
     ],