diff --git a/pkgs/applications/science/math/qalculate-gtk/default.nix b/pkgs/applications/science/math/qalculate-gtk/default.nix
index 7807ae613e8c..bc192fe4218b 100644
--- a/pkgs/applications/science/math/qalculate-gtk/default.nix
+++ b/pkgs/applications/science/math/qalculate-gtk/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "qalculate-gtk";
-  version = "3.19.0";
+  version = "3.20.1";
 
   src = fetchFromGitHub {
     owner = "qalculate";
     repo = "qalculate-gtk";
     rev = "v${version}";
-    sha256 = "1nrx7gp6f1yalbdda1gb97azhbr4xclq2xf08vvbvsk8jfd6fd2v";
+    sha256 = "sha256-GTOdJ4dxR491WU6WM47xLHO7RGUGXkdHuQIDxJvVvFE=";
   };
 
   hardeningDisable = [ "format" ];