diff --git a/pkgs/tools/graphics/gnuplot/default.nix b/pkgs/tools/graphics/gnuplot/default.nix
index bcb464d375e1..ed8bde2a23fb 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 = "5.4.4";
+  version = "5.4.5";
 
   src = fetchurl {
     url = "mirror://sourceforge/gnuplot/${pname}-${version}.tar.gz";
-    sha256 = "sha256-NyMAt4Z/WzU4sl/F0Kx3NK9uP+DSArbbkm5DaZE/CQI=";
+    sha256 = "sha256-ZvZ5EV3TBVnhEEmPyU2SaUnU03C0mZoELnJLjpEO5Hg=";
   };
 
   nativeBuildInputs = [ makeWrapper pkg-config texinfo ] ++ lib.optional withQt qttools;