That’s the warning that Silver Arrows team principal Toto Wolff has delivered.
The 33-year-old had an action-packed weekend in Germany last Sunday after qualifying just 14th.
He surged through the field on Sunday and benefitted from a partial rain downpour in the final third of the race which caused race leader Sebastian Vettel to spin into the barriers.
Hamilton’s title rival had been in full control in the Ferrari and looked set to extend the points gap between the two four-time world champions.
But his crash allowed Hamilton to jump into first behind the safety car after Kimi Raikkonen decided to pit, coming out behind the other Mercedes in Valtteri Bottas.
Hamilton held off Bottas at the restart as they went wheel-to-wheel and the Finn was eventually instructed to hold track position to guarantee a one-two finish for the team.
That allowed Hamilton to earn a 66th career win and one which sees him move 17 points clear at the top of the standings in a potentially season-defining race.
Hamilton will go head-to-head with Vettel again this weekend at the Hungaroring in Mogyorod, Hungary – the final grand prix before the mid-season break.
And despite moving back ahead of Ferrari in both title races, Wolff insists Mercedes must continue to push themselves given the relentless competition with the Italian constructors.
“We’ve had our fair share of bad luck this season, but it felt like our fortunes turned around in Hockenheim,” Wolff told Mercedes’ official website.
“A one-two is always a great result. To get it on Mercedes home turf after starting from P2 and P14 on the grid was absolutely incredible.
“However, in the cold light of day, we also know and recognise that we did not bring the quickest car to Hockenheim.
“We’ve passed the half-way point of the season and we lead both championships by very close margins.
“Each and every member of our team has worked very hard to make this possible and the determination and energy in our factories seems to be ever-growing.
“We all know that no prizes are given out for half-time champions, so we will keep pushing to improve our performance.
“Hungary will see another tough fight with both Ferrari and Red Bull. It’s a high downforce track and on paper they should both be very fast in Budapest.
“However, if there’s one thing the German Grand Prix taught us, it’s the fact that predictions don’t determine race results.
“We will give it everything to go into the summer shutdown with as many points as possible.”