diff --git a/pkgs/development/python-modules/lacuscore/default.nix b/pkgs/development/python-modules/lacuscore/default.nix
index e4017d2c7899..14924e955cb1 100644
--- a/pkgs/development/python-modules/lacuscore/default.nix
+++ b/pkgs/development/python-modules/lacuscore/default.nix
@@ -18,14 +18,14 @@
 
 buildPythonPackage rec {
   pname = "lacuscore";
-  version = "1.19.3";
+  version = "1.20.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "ail-project";
     repo = "LacusCore";
     tag = "v${version}";
-    hash = "sha256-mm9oInWx7xZ+39kNOt77TLjCCf60Tmisefh71+2ZIMw=";
+    hash = "sha256-L7hmqNymXkZD/NQk1OQ9H34aJcCa6W23gkQSjomv7Iw=";
   };
 
   pythonRelaxDeps = [