diff --git a/pkgs/development/python-modules/transaction/default.nix b/pkgs/development/python-modules/transaction/default.nix
new file mode 100644
index 00000000000..31f69971e52
--- /dev/null
+++ b/pkgs/development/python-modules/transaction/default.nix
@@ -0,0 +1,26 @@
+{ stdenv
+, fetchPypi
+, buildPythonPackage
+, zope_interface
+, mock
+}:
+
+
+buildPythonPackage rec {
+  name = "${pname}-${version}";
+  pname = "transaction";
+  version = "2.1.2";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1mab0r3grmgz9d97y8pynhg0r34v0am35vpxyvh7ff5sgmg3dg5r";
+  };
+
+  propagatedBuildInputs = [ zope_interface mock ];
+
+  meta = with stdenv.lib; {
+    description = "Transaction management";
+    homepage = http://pypi.python.org/pypi/transaction;
+    license = licenses.zpl20;
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 4f933b4364d..f56561053ce 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -23386,23 +23386,8 @@ in {
   };
 
 
-  transaction = buildPythonPackage rec {
-    name = "transaction-${version}";
-    version = "1.4.3";
+  transaction = callPackage ../development/python-modules/transaction { };
 
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/t/transaction/${name}.tar.gz";
-      sha256 = "1b2304a886a85ad014f73d93346c14350fc214ae22a4f565f42f6761cfb9ecc5";
-    };
-
-    propagatedBuildInputs = with self; [ zope_interface ];
-
-    meta = {
-      description = "Transaction management";
-      homepage = http://pypi.python.org/pypi/transaction;
-      license = licenses.zpl20;
-    };
-  };
 
   transmissionrpc = buildPythonPackage rec {
     name = "transmissionrpc-${version}";