diff --git a/README.md b/README.md
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@@ -81,7 +81,7 @@ This list is for websites, services, software, tools and more: everything that y
 - [Circuit JS/Falstad](http://www.falstad.com/circuit/circuitjs.html) - Free, open source online simulator with electron flow visualization (rewrite of original Java applet by Paul Falstad).
 - [EveryCircuit](https://everycircuit.com) - Free to try online, visual, interactive circuit simulator for simpler circuits.
 - [Qucs](http://qucs.sourceforge.net/) - Open source, cross-platform, non-SPICE-based circuit simulator, with with S-parameter and Harmonic Balance capability.
-- [QucsStudio](http://dd6um.darc.de/QucsStudio/qucsstudio.html) - Free, closed-source, Windows-only fork of Qucs with a similar interface, new engine, and more features.
+- [QucsStudio](http://qucsstudio.de/) - Free, closed-source, Windows-only fork of Qucs with a similar interface, new engine, and more features.
 - [Open Circuit Design Software](http://opencircuitdesign.com) - Open Source, full EDA suite chip design suite, focused on keeping up with commercial tools.
 - [TINA-TI](http://www.ti.com/tool/TINA-TI) - Exclusive [DesignSoft-TINA](https://www.tina.com) build for Texas Instruments, bundled with Texas Instruments Models.
 - [CppSim](https://www.cppsim.com/) - Free, open source circuit simulator that leverages the C++ language to achieve very fast simulation times.