Lisnagarvey will be playing in the top flight of European competition next season after winning an appeal that was lodged with the sport's national governing body.
Initially, after the national league was declared null and void due to the Covid-19 pandemic, the Hillsborough club were allocated the less prestigious of the two European spots on offer, namely the third-tier Club Trophy.
Three Rock Rovers were handed a place in the European Hockey League and those decisions were based on the previous year's finishing positions in the regulation season and the play-offs.
However, Garvey appealed the initial decision after looking set to be crowned champions as they were five points clear with two games in hand when the pandemic forced the premature end to last season.
Having listened to the appeal, Hockey Ireland have reversed the allocation of European places, with Garvey swapping with Three Rock, who were fourth in the standings when the Irish Hockey League was halted.
Lisnagarvey chairman Kyle Lunn said: "Naturally, we are pleased with the result of the appeals process as we believe it is a fair and correct outcome and we would like to thank Hockey Ireland for all the work they have been doing in unprecedented and difficult times."
The women's European line-up remains unchanged with Pegasus joining Garvey in the EHL and Loreto taking part in the lower division.