diff --git a/pkgs/by-name/fa/faust2/package.nix b/pkgs/by-name/fa/faust2/package.nix
index 60296db0ac76..59d1aa91d4c5 100644
--- a/pkgs/by-name/fa/faust2/package.nix
+++ b/pkgs/by-name/fa/faust2/package.nix
@@ -24,13 +24,13 @@
 
 let
 
-  version = "2.85.5";
+  version = "2.85.9";
 
   src = fetchFromGitHub {
     owner = "grame-cncm";
     repo = "faust";
     tag = version;
-    hash = "sha256-QKCyOiYGLh67lS0WS+LCCl/edhl/A+zccCWyWRTV1vM=";
+    hash = "sha256-aUIbvMShhzi0QmFwZUOodzl3BY5TGt3TdquSeZ44C2k=";
     fetchSubmodules = true;
   };