diff --git a/pkgs/development/python-modules/cachetools/default.nix b/pkgs/development/python-modules/cachetools/default.nix
index 120fd5df124..a160c5ea94c 100644
--- a/pkgs/development/python-modules/cachetools/default.nix
+++ b/pkgs/development/python-modules/cachetools/default.nix
@@ -1,5 +1,6 @@
 { lib
 , buildPythonPackage
+, isPy27
 , fetchFromGitHub
 , pytestCheckHook
 }:
@@ -8,6 +9,8 @@ buildPythonPackage rec {
   pname = "cachetools";
   version = "4.2.1";
 
+  disabled = isPy27;
+
   src = fetchFromGitHub {
     owner = "tkem";
     repo = pname;