dub install vibe-d --version=0.7.18

Downloading vibe-d 0.7.19-beta.2...
Installing vibe-d 0.7.19-beta.2 to /home/stephan/.dub/packages/...
vibe-d has been installed with version 0.7.19-beta.2

WTF? I got a problem with the recent master but I cannot install the old version anymore ?!