diff --git a/pkgs/by-name/ta/taschenrechner/package.nix b/pkgs/by-name/ta/taschenrechner/package.nix
index eeb2b841abff..1b45c783830d 100644
--- a/pkgs/by-name/ta/taschenrechner/package.nix
+++ b/pkgs/by-name/ta/taschenrechner/package.nix
@@ -5,17 +5,17 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "taschenrechner";
-  version = "1.3.0";
+  version = "1.4.0";
 
   src = fetchFromGitLab {
     domain = "gitlab.fem-net.de";
     owner = "mabl";
     repo = "taschenrechner";
     rev = version;
-    hash = "sha256-PF9VCdlgA4c4Qw8Ih3JT29/r2e7i162lVAbW1QSOlWo=";
+    hash = "sha256-5Vml6UeiWz7fNA+vEQ/Ita2YI8dGgDclqkzQ848AwVk=";
   };
 
-  cargoHash = "sha256-SFgStvpcqEwus1JBs5ZyMHO1UD0oWV7mvS6o4v5gIFc=";
+  cargoHash = "sha256-BZGkdHR66O3GjKl9yM/bKxdGdvWFB/YO2Egg6V/wuB8=";
 
   meta = with lib; {
     description = "A cli-calculator written in Rust";