diff --git a/pkgs/development/python-modules/requests-mock/default.nix b/pkgs/development/python-modules/requests-mock/default.nix
new file mode 100644
index 000000000000..ef87c4f10195
--- /dev/null
+++ b/pkgs/development/python-modules/requests-mock/default.nix
@@ -0,0 +1,21 @@
+{ lib, buildPythonPackage, fetchPypi, python
+, mock, testrepository, testtools
+, requests, six }:
+
+buildPythonPackage rec {
+  pname = "requests-mock";
+  version = "1.4.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "2931887853c42e1d73879983d5bf03041109472991c5b4b8dba5d11ed23b9d0b";
+  };
+
+  patchPhase = ''
+    sed -i 's@python@${python.interpreter}@' .testr.conf
+  '';
+
+  checkInputs = [ mock testrepository testtools ];
+
+  propagatedBuildInputs = [ requests six ];
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 1fde0b383d73..bd24d8a185da 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -9567,22 +9567,7 @@ in {
 
   olefile = callPackage ../development/python-modules/olefile { };
 
-  requests-mock = buildPythonPackage rec {
-    name = "requests-mock-${version}";
-    version = "1.3.0";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/r/requests-mock/${name}.tar.gz";
-      sha256 = "0jr997dvk6zbmhvbpcv3rajrgag69mcsm1ai3w3rgk2jdh6rg1mx";
-    };
-
-    patchPhase = ''
-      sed -i 's@python@${python.interpreter}@' .testr.conf
-    '';
-
-    buildInputs = with self; [ pbr testtools testrepository mock ];
-    propagatedBuildInputs = with self; [ six requests ];
-  };
+  requests-mock = callPackage ../development/python-modules/requests-mock { };
 
   mox3 = buildPythonPackage rec {
     name = "mox3-${version}";