diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index c62e465e8f..6697937d98 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -46200,27 +46200,23 @@ (define-public rust-rawslice-0.1
 (define-public rust-rayon-1
   (package
     (name "rust-rayon")
-    (version "1.5.1")
+    (version "1.6.1")
     (source
      (origin
        (method url-fetch)
        (uri (crate-uri "rayon" version))
        (file-name (string-append name "-" version ".tar.gz"))
        (sha256
-        (base32 "143dl2453bazgk7rwjrickmyqd0ks3q69nfz8axcins19n0clsn0"))))
+        (base32 "1dsr0yyfgdsg8ggh37kq678mfa5j3js6p16ksb7knazhml9s5cvd"))))
     (build-system cargo-build-system)
     (arguments
      `(#:cargo-inputs
-       (("rust-autocfg" ,rust-autocfg-1)
-        ("rust-crossbeam-deque" ,rust-crossbeam-deque-0.8)
-        ("rust-either" ,rust-either-1)
+       (("rust-either" ,rust-either-1)
         ("rust-rayon-core" ,rust-rayon-core-1))
        #:cargo-development-inputs
-       (("rust-docopt" ,rust-docopt-1)
-        ("rust-lazy-static" ,rust-lazy-static-1)
+       (("rust-lazy-static" ,rust-lazy-static-1)
         ("rust-rand" ,rust-rand-0.8)
-        ("rust-rand-xorshift" ,rust-rand-xorshift-0.3)
-        ("rust-serde" ,rust-serde-1))))
+        ("rust-rand-xorshift" ,rust-rand-xorshift-0.3))))
     (home-page "https://github.com/rayon-rs/rayon")
     (synopsis "Simple work-stealing parallelism for Rust")
     (description