wrong image in FB share

Hi there,

I don't get where Facebook gets the og:image information of this page:
integralzen.de/ressourcen/videos/mondo/1...s-ist-mondo-zen.html

See what FB reads:
developers.facebook.com/tools/debug/shar...s-ist-mondo-zen.html

This is the text I integrated in that page:
{SCOpenGraph image=http://integralzen.de/images/doshinjunpo.jpg}
{SCOpenGraph title="Junpo Roshi und Doshin Roshi zu Mondo Zen"}
{SCOpenGraph description=Junpo Roshi und Doshin Roshi erklären jeweils aus ihrer Sicht, was Mondo Zen ist.}
{JFBCLike}

Facebook finds several og:image tags:
<meta property="og:image" content="integralzen.de/images/doshinjunpo.jpg" />
<meta property="og:image" content="integralzen.de/images/what-is-mondozen-junpo-doshin.jpg" />
<meta property="og:image" content="integralzen.de/images/IntegralZenFacebookPage.png" />

How can I force FB to use the above one (integralzen.de/images/doshinjunpo.jpg)

Thx!!