diff --git a/Wabbajack-via-Proton.md b/Wabbajack-via-Proton.md
index 43f767c..41a9880 100644
--- a/Wabbajack-via-Proton.md
+++ b/Wabbajack-via-Proton.md
@@ -18,6 +18,8 @@ There may be other ways to carry out the steps required, and more experienced us
 
 For each step, I've tried to include both command line and GUI methods (you only need to do one or the other), though not all steps have both.
 
+**Required - protontricks 1.11.0 or newer (users of Ubuntu and Ubuntu-based distributions take note, as the non-flatpak version of Protontricks available by default to ubuntu distros is far too old)**
+
 **PLEASE NOTE: Use this guide at your own risk. Damage to your system caused by following the steps of this guide either correctly or incorrectly are done so with this understanding. You could always initially carry out the steps in a VM until you are familiar with the steps, to test for your distro without altering your base system.**