De-load deadlifts. Deadlifts are a extremely easy exercise to progressively load, at least compared to the other two main lifts. However they are also very easy to let your form get lazy. This is why for a while now I've been focusing on lightweight deadlifts (only 60kg here, which is roughly bodyweight for me). As this allows me to create a pattern when it comes to my form and the more ingrained it is the more likely I'll be able to maintain that even with heavier loads where form naturally starts to fail.