diff --git a/pkgs/development/octave-modules/signal/default.nix b/pkgs/development/octave-modules/signal/default.nix
index ae1339ca274a..b879b9f313a8 100644
--- a/pkgs/development/octave-modules/signal/default.nix
+++ b/pkgs/development/octave-modules/signal/default.nix
@@ -6,11 +6,11 @@
 
 buildOctavePackage rec {
   pname = "signal";
-  version = "1.4.1";
+  version = "1.4.2";
 
   src = fetchurl {
     url = "mirror://sourceforge/octave/${pname}-${version}.tar.gz";
-    sha256 = "1amfh7ifjqxz2kr34hgq2mq8ygmd5j3cjdk1k2dk6qcgic7n0y6r";
+    sha256 = "YqTgYRfcxDw2FpkF+CVdAVSBypgq6ukBOw2d8+SOcGI=";
   };
 
   requiredOctavePackages = [