diff --git a/pkgs/development/python-modules/jianpu-ly/default.nix b/pkgs/development/python-modules/jianpu-ly/default.nix
index 859b74daddae..fbd0ca6e7f32 100644
--- a/pkgs/development/python-modules/jianpu-ly/default.nix
+++ b/pkgs/development/python-modules/jianpu-ly/default.nix
@@ -8,13 +8,13 @@
 
 buildPythonPackage rec {
   pname = "jianpu-ly";
-  version = "1.839";
+  version = "1.842";
   pyproject = true;
 
   src = fetchPypi {
     inherit version;
     pname = "jianpu_ly";
-    hash = "sha256-KFBG/iJeFt2dHHNvhPZlvWxAEO4kLPpNW4R1HRWuUUg=";
+    hash = "sha256-boxatNwmmog5axYQfINhs4VVnoHPyBw7Q8rLFQfnRTU=";
   };
 
   dependencies = [ lilypond ];