Fail to install package via raco

Hi, All,

I try the following command, try to install ppict, but it fails with the
following message.  Could you help me to fix this?

$ raco pkg install ppict
Resolving "ppict" via https://download.racket-lang.org/releases/6.7/catalog/
ssl-make-client-context: requested protocol not supported;
 SSL not available; check `ssl-load-fail-reason'
  requested: 'auto
  context...:
   /usr/share/racket/collects/openssl/mzssl.rkt:624:0: make-raw-context
   /usr/share/racket/collects/openssl/mzssl.rkt:932:4: reset
   /usr/share/racket/collects/openssl/mzssl.rkt:624:0: make-raw-context
   /usr/share/racket/collects/openssl/mzssl.rkt:492:18
   /usr/share/racket/collects/ffi/unsafe/atomic.rkt:72:13
   /usr/share/racket/collects/openssl/../racket/private/more-scheme.rkt:261:28
   /usr/share/racket/collects/openssl/../racket/contract/private/arrow-val-first.rkt:306:25
   /usr/share/racket/collects/net/http-client.rkt:243:0
   /usr/share/racket/collects/racket/contract/private/arrow-val-first.rkt:397:3
   /usr/share/racket/collects/net/url.rkt:187:0: http://getpost-impure-port
   /usr/share/racket/collects/net/url.rkt:294:2: redirection-loop
   /usr/share/racket/collects/racket/contract/private/arrow-val-first.rkt:397:3
   /usr/share/racket/collects/pkg/private/network.rkt:59:3
   /usr/share/racket/collects/pkg/private/catalog.rkt:218:0: read-from-server
   /usr/share/racket/collects/pkg/private/catalog.rkt:138:9: for-loop
   /usr/share/racket/collects/pkg/private/catalog.rkt:135:2: lookup-normally
   ...

Best Regards,
Huang, Ying

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