diff --git a/pkgs/development/python-modules/tox/default.nix b/pkgs/development/python-modules/tox/default.nix
index 4ceeb026634c..e98cb2493a88 100644
--- a/pkgs/development/python-modules/tox/default.nix
+++ b/pkgs/development/python-modules/tox/default.nix
@@ -9,7 +9,7 @@
 
 buildPythonPackage rec {
   pname = "tox";
-  version = "3.0.0";
+  version = "3.1.2";
 
   buildInputs = [ setuptools_scm ];
   propagatedBuildInputs = [ py virtualenv pluggy six ];
@@ -18,6 +18,6 @@ buildPythonPackage rec {
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "96efa09710a3daeeb845561ebbe1497641d9cef2ee0aea30db6969058b2bda2f";
+    sha256 = "9f0cbcc36e08c2c4ae90d02d3d1f9a62231f974bcbc1df85e8045946d8261059";
   };
 }
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