diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index a7ce61322a..30dbf0756c 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -71069,6 +71069,27 @@ variant of this library is available separately as @code{im}.")
 for uint and fixed hash.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-impl-rlp-0.3
+  (package
+    (name "rust-impl-rlp")
+    (version "0.3.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "impl-rlp" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "021869d5s47ili9kmhm9y80qpsbf0wwdap14qzfpb84pjbw210pj"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-rlp" ,rust-rlp-0.5))))
+    (home-page "https://github.com/paritytech/parity-common")
+    (synopsis "RLP serialization support for uint and fixed hash")
+    (description "This package provides RLP serialization support for uint
+and fixed hash.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-impl-trait-for-tuples-0.2
   (package
     (name "rust-impl-trait-for-tuples")