diff --git a/pkgs/by-name/st/stochas/package.nix b/pkgs/by-name/st/stochas/package.nix
index 84297760b32b..67e89ccf3a2e 100644
--- a/pkgs/by-name/st/stochas/package.nix
+++ b/pkgs/by-name/st/stochas/package.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "stochas";
-  version = "1.3.12";
+  version = "1.3.13";
 
   src = fetchFromGitHub {
     owner = "surge-synthesizer";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-GrYzsyezunFLFVzBfYCbNC53K695eYto9338iAALiSk=";
+    hash = "sha256-Gp49cWvUkwz4xAq5sA1nUO+amRC39iWeUemQJyv6hTs=";
     fetchSubmodules = true;
   };