1 files changed, 6 insertions, 2 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/virtualenv/default.nix b/nixpkgs/pkgs/development/python-modules/virtualenv/default.nix
index ff5172d415f..6a9d91d79c8 100644
--- a/nixpkgs/pkgs/development/python-modules/virtualenv/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/virtualenv/default.nix
@@ -17,11 +17,11 @@
 
 buildPythonPackage rec {
   pname = "virtualenv";
-  version = "20.0.21";
+  version = "20.0.31";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1kxnxxwa25ghlkpyrxa8pi49v87b7ps2gyla7d1h6kbz9sfn45m1";
+    sha256 = "43add625c53c596d38f971a465553f6318decc39d98512bc100fa1b1e839c8dc";
   };
 
   nativeBuildInputs = [
@@ -43,6 +43,10 @@ buildPythonPackage rec {
     importlib-metadata
   ];
 
+  patches = lib.optionals (isPy27) [
+    ./0001-Check-base_prefix-and-base_exec_prefix-for-Python-2.patch
+  ];
+
   meta = {
     description = "A tool to create isolated Python environments";
     homepage = "http://www.virtualenv.org";