diff --git a/pkgs/development/python-modules/betamax-matchers/default.nix b/pkgs/development/python-modules/betamax-matchers/default.nix
new file mode 100644
index 000000000000..762154ac45d2
--- /dev/null
+++ b/pkgs/development/python-modules/betamax-matchers/default.nix
@@ -0,0 +1,21 @@
+{ stdenv, buildPythonPackage, fetchPypi
+, betamax, requests_toolbelt }:
+
+buildPythonPackage rec {
+  pname = "betamax-matchers";
+  version = "0.4.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "07qpwjyq2i2aqhz5iwghnj4pqr2ys5n45v1vmpcfx9r5mhwrsq43";
+  };
+
+  buildInputs = [ betamax requests_toolbelt ];
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/sigmavirus24/betamax_matchers;
+    description = "A group of experimental matchers for Betamax";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ pSub ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 475b3a2ea40a..9941a80dd6bb 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1311,24 +1311,8 @@ in {
     };
   };
 
-  betamax-matchers = buildPythonPackage rec {
-    name = "betamax-matchers-${version}";
-    version = "0.3.0";
+  betamax-matchers = callPackage ../development/python-modules/betamax-matchers { };
 
-    src = pkgs.fetchurl {
-       url = "mirror://pypi/b/betamax-matchers/${name}.tar.gz";
-      sha256 = "039kvqsdcvvlfxjc3n1x2xvjg6qkqbql0p7rc4z7bnxm9kcm88la";
-    };
-
-    buildInputs = with self; [ betamax requests_toolbelt ];
-
-    meta = with stdenv.lib; {
-      homepage = https://github.com/sigmavirus24/betamax_matchers;
-      description = "A group of experimental matchers for Betamax";
-      license = licenses.asl20;
-      maintainers = with maintainers; [ pSub ];
-    };
-  };
   betamax-serializers = callPackage ../development/python-modules/betamax-serializers { };
 
   bibtexparser = callPackage ../development/python-modules/bibtexparser { };