diff --git a/pkgs/development/python-modules/pgmpy/default.nix b/pkgs/development/python-modules/pgmpy/default.nix
index 3a473f07c388..295c936b3d5f 100644
--- a/pkgs/development/python-modules/pgmpy/default.nix
+++ b/pkgs/development/python-modules/pgmpy/default.nix
@@ -28,7 +28,7 @@
 }:
 buildPythonPackage (finalAttrs: {
   pname = "pgmpy";
-  version = "1.0.0-unstable-2025-12-20";
+  version = "1.1.0";
   pyproject = true;
 
   src = fetchFromGitHub {