diff --git a/pkgs/applications/audio/stochas/default.nix b/pkgs/applications/audio/stochas/default.nix
index 4bff0179ed5..84376a1bbe9 100644
--- a/pkgs/applications/audio/stochas/default.nix
+++ b/pkgs/applications/audio/stochas/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "stochas";
-  version = "1.3.8";
+  version = "1.3.9";
 
   src = fetchFromGitHub {
     owner = "surge-synthesizer";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-/YT2M/VbkABjFvtTjGPWaSKUZaznMIYKXV6gNSD2PeU=";
+    sha256 = "sha256-AnYViWterLBsTtd0wohff1CEwrSYA4CvOLGhJnPFUt8=";
     fetchSubmodules = true;
   };