diff --git a/pkgs/development/python-modules/cysignals/default.nix b/pkgs/development/python-modules/cysignals/default.nix
index 090a8fccd1da..839e3cfd2385 100644
--- a/pkgs/development/python-modules/cysignals/default.nix
+++ b/pkgs/development/python-modules/cysignals/default.nix
@@ -12,14 +12,14 @@
 
 buildPythonPackage rec {
   pname = "cysignals";
-  version = "1.12.5";
+  version = "1.12.6";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "sagemath";
     repo = "cysignals";
     tag = version;
-    hash = "sha256-y7CA0aih2vATLz0Fhwf19/wRw6GnQvNhGo9lS4+VrgI=";
+    hash = "sha256-uZNKmnn1Jf1pERdG4bywpAUClKMw3og+7Q5B0yPlqEY=";
   };
 
   build-system = [