pin one's hopes on

• pin one's faith on

pin one's hopes on (third-person singular simple present pins one's hopes on, present participle pinning one's hopes on, simple past and past participle pinned one's hopes on)

1. To place all one's trust or hope in (someone or something).
   • 2021 September 15, Laura Martin, “How talent shows became TV's most bizarre programmes”, in BBC‎:

     Wade is pinning Fox's next hopes for talent-show success on Alter Ego, which sees contestants perform as avatars to a panel of judges including Grimes, Alanis Morrisette and TV singing competition stalwart will.i.am.

• bank on
• hang one's hat on

• “pin one's hopes on”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “pin one's hopes on”, in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present.
• “pin one's hopes on”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “pin your hopes on”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “pin your hopes on” (US) / “pin your hopes on” (UK) in Macmillan English Dictionary.