diff --git a/pkgs/development/python-modules/cypari/default.nix b/pkgs/development/python-modules/cypari/default.nix
index 7b263b26720e..4343437554bc 100644
--- a/pkgs/development/python-modules/cypari/default.nix
+++ b/pkgs/development/python-modules/cypari/default.nix
@@ -3,6 +3,7 @@
   fetchFromGitHub,
   python,
   buildPythonPackage,
+  nix-update-script,
   fetchurl,
   fetchpatch,
 
@@ -78,6 +79,13 @@ buildPythonPackage rec {
     runHook postCheck
   '';
 
+  passthru.updateScript = nix-update-script {
+    extraArgs = [
+      "--version-regex"
+      "(.*)_as_released"
+    ];
+  };
+
   meta = {
     description = "Sage's PARI extension, modified to stand alone";
     homepage = "https://github.com/3-manifolds/CyPari";