diff --git a/gnu/packages/scheme.scm b/gnu/packages/scheme.scm
index 49b6df9b0dcb5617b096d6b8c1e0f29fd08f0f9a..5eebb5837918e861e14bcbbb57dd21a2bdddcc73 100644
--- a/gnu/packages/scheme.scm
+++ b/gnu/packages/scheme.scm
@@ -197,7 +197,7 @@ (define-public hop
                                  version ".tar.gz"))
              (sha256
               (base32
-               "04fhy5jp9lq12fmdqfjzj1w32f7nxc80fagbj7pfci7xh86nm2c5"))))
+               "1v2r4ga58kk1sx0frn8qa8ccmjpic9csqzpk499wc95y9c4b1wy3"))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases