diff --git a/pkgs/applications/audio/synthv1/default.nix b/pkgs/applications/audio/synthv1/default.nix
index eecf8caee379..b0e9e9bde9d0 100644
--- a/pkgs/applications/audio/synthv1/default.nix
+++ b/pkgs/applications/audio/synthv1/default.nix
@@ -2,11 +2,11 @@
 
 mkDerivation rec {
   pname = "synthv1";
-  version = "0.9.15";
+  version = "0.9.23";
 
   src = fetchurl {
     url = "mirror://sourceforge/synthv1/${pname}-${version}.tar.gz";
-    sha256 = "047y2l7ipzv00ly54f074v6p043xjml7vz0svc7z81bhx74vs0ix";
+    sha256 = "sha256-0V72T51icT/t9fJf4mwcMYZLjzTPnmiCbU+BdwnCmw4=";
   };
 
   buildInputs = [ qtbase qttools libjack2 alsa-lib liblo lv2 ];