diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 521b8679..23682c21 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.5, 3.6, 3.7]
+        python-version: [3.5, 3.6, 3.7, 3.8]
 
     steps:
       - uses: actions/checkout@v2
diff --git a/setup.py b/setup.py
index 153317bd..0d9d249f 100644
--- a/setup.py
+++ b/setup.py
@@ -34,6 +34,7 @@
     install_requires=REQUIRES,
     extras_require=EXTRAS,
     packages=find_packages(exclude=["tests", "tests.*"]),
+    python_requires=">=3.5.3",
     entry_points={"console_scripts": ["pymysensors = mysensors.cli:cli"]},
     keywords=["sensor", "actuator", "IoT", "DYI"],
     zip_safe=True,
@@ -46,6 +47,7 @@
         "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
         "Topic :: Home Automation",
     ],
 )
diff --git a/tox.ini b/tox.ini
index 0d679109..ba264988 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py35, py36, py37, black, lint
+envlist = py35, py36, py37, py38, black, lint
 skip_missing_interpreters = True
 
 [gh-actions]
@@ -7,6 +7,7 @@ python =
   3.5: py35, lint
   3.6: py36, black
   3.7: py37
+  3.8: py38
 
 [testenv]
 commands =