diff --git a/.github/workflows/test_build.yml b/.github/workflows/test_build.yml
index 9304956..e919be8 100644
--- a/.github/workflows/test_build.yml
+++ b/.github/workflows/test_build.yml
@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
       matrix:
         platform: [ ubuntu-latest, windows-latest, macos-latest ]
-        python-version: [ 3.9,  "3.10", "3.11", "3.12"]
+        python-version: [ 3.8, 3.9,  "3.10", "3.11", "3.12"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/tox.ini b/tox.ini
index 21b1789..dacebf8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,10 +1,11 @@
 # For more information about tox, see https://tox.readthedocs.io/en/latest/
 [tox]
-envlist = py{39,310,311,312}-{linux,macos,windows}
+envlist = py{38,39,310,311,312}-{linux,macos,windows}
 isolated_build=true
 
 [gh-actions]
 python =
+    3.8: py38
     3.9: py39
     3.10: py310
     3.11: py311