diff --git a/pkgs/development/python-modules/cfgv/default.nix b/pkgs/development/python-modules/cfgv/default.nix
index a58669e58a8b..c040ae7a5f3f 100644
--- a/pkgs/development/python-modules/cfgv/default.nix
+++ b/pkgs/development/python-modules/cfgv/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "cfgv";
-  version = "2.0.1";
+  version = "3.1.0";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0i1iam461bd6bphd402r7payr2m71xivy5zp6k2gjnv67fa8gczd";
+    sha256 = "c8e8f552ffcc6194f4e18dd4f68d9aef0c0d58ae7e7be8c82bee3c5e9edfa513";
   };
 
   propagatedBuildInputs = [ six ];