diff --git a/gnu/packages/guile.scm b/gnu/packages/guile.scm
index a9e04cb476..d320763a61 100644
--- a/gnu/packages/guile.scm
+++ b/gnu/packages/guile.scm
@@ -665,14 +665,14 @@ (define-public guile-json-4
   (package
     (inherit guile-json-3)
     (name "guile-json")
-    (version "4.5.2")
+    (version "4.7.1")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://savannah/guile-json/guile-json-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "0cqr0ljqmzlc2bwrapcsmcgxg147h66mcxf23824ri5i6vn4dc0s"))))))
+                "0hv8jjb6wdhvfrprwdi36125sci1ip4zfflv79hqlz7nh0irld65"))))))
 
 (define-public guile2.2-json
   (package-for-guile-2.2 guile-json-4))