diff --git a/extras.txt b/extras.txt
index 699c8fa..be7cc25 100644
--- a/extras.txt
+++ b/extras.txt
@@ -6,5 +6,5 @@ flake8
 pytest
 pytest-cov
 pytest-mock
-tox==3.27.0
+tox==4.6.4
 coverage-badge==1.1.0
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 2f03875..7309609 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 extras = {
     "testing": [
-        "tox==3.27.0",
+        "tox==4.6.4",
         "black",
         "isort",
         "autoflake",