diff --git a/pkgs/development/python-modules/cypari/default.nix b/pkgs/development/python-modules/cypari/default.nix
index 4343437554bc..e71204f09963 100644
--- a/pkgs/development/python-modules/cypari/default.nix
+++ b/pkgs/development/python-modules/cypari/default.nix
@@ -33,26 +33,21 @@
 
 buildPythonPackage rec {
   pname = "cypari";
-  version = "2.5.5";
+  version = "2.5.6";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "3-manifolds";
     repo = "CyPari";
     tag = "${version}_as_released";
-    hash = "sha256-RJ9O1KsDHmMkTCIFUrcSUkA5ijTsxmoI939QCsCib0Y=";
+    hash = "sha256-pzxnrWkoPW7fpxLbUQ+drIrdrjqaAiNnDfe9ky2IxaA=";
   };
 
   patches = [
-    (fetchpatch {
-      name = "support-aarch64-linux.patch";
-      url = "https://github.com/3-manifolds/CyPari/commit/6197171b52ee4f44a4954ddd0e2e36769b189dee.patch";
-      hash = "sha256-j2P7DEGD2B8q9Hh4G2mQng76fQdUpeAdFYoTD7Ui/Dk=";
-    })
     (fetchpatch {
       name = "fix-build-with-cython-3_1.patch";
-      url = "https://github.com/3-manifolds/CyPari/compare/622e112ffcf0383e2110954ff3ac3c42c006ebe1...50bcbd2b39177f5e4c5a3551a8a14f75ab05a5d6.patch";
-      hash = "sha256-6ayvtHMS3YtzzklHaaLzl9d4zHJhm0lVZQZFS9ykFY4=";
+      url = "https://github.com/3-manifolds/CyPari/compare/17bf39dc4508f2e46de75b95c65982c627652b60...d6cb914d2bdc74a51cc2a9136204ebf47b3e7369.diff";
+      hash = "sha256-c8sq80mYSMMvgFh7RXYwKcqwI7iVRQsm/8yaIL0+PHQ=";
     })
   ];