diff --git a/pkgs/tools/graphics/gnuplot/default.nix b/pkgs/tools/graphics/gnuplot/default.nix
index ec5dde5d4c88..f76919b0bc55 100644
--- a/pkgs/tools/graphics/gnuplot/default.nix
+++ b/pkgs/tools/graphics/gnuplot/default.nix
@@ -21,11 +21,11 @@ let
 in
 (if withQt then mkDerivation else stdenv.mkDerivation) rec {
   pname = "gnuplot";
-  version = "5.4.8";
+  version = "5.4.9";
 
   src = fetchurl {
     url = "mirror://sourceforge/gnuplot/${pname}-${version}.tar.gz";
-    sha256 = "sha256-kxJ5x8qtGv99RstHZvH/QcJtm+na8Lzwx53u7j2R9c8=";
+    sha256 = "sha256-oyigIfU9wFRZvmBmAg6acejqtiVdM4HiJpYSDUZcapc=";
   };
 
   nativeBuildInputs = [ makeWrapper pkg-config texinfo ] ++ lib.optional withQt qttools;