diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index f97e125753..144d4dc70f 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -15595,34 +15595,6 @@ (define-public rust-datetime-0.5
 and arithmetic.")
     (license license:expat)))
 
-(define-public rust-datetime-0.4
-  (package
-    (inherit rust-datetime-0.5)
-    (name "rust-datetime")
-    (version "0.4.7")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (crate-uri "datetime" version))
-        (file-name
-         (string-append name "-" version ".tar.gz"))
-        (sha256
-         (base32
-          "1fd74bq48xg8ki5yw1mr1pa5hd3j5lbk4iqc5r0kh3l62b0vci2w"))))
-    (arguments
-     `(#:cargo-inputs
-        (("rust-iso8601" ,rust-iso8601-0.1)
-         ("rust-kernel32-sys" ,rust-kernel32-sys-0.2)
-         ("rust-libc" ,rust-libc-0.2)
-         ("rust-locale" ,rust-locale-0.2)
-         ("rust-num-traits" ,rust-num-traits-0.1)
-         ("rust-pad" ,rust-pad-0.1)
-         ("rust-redox-syscall" ,rust-redox-syscall-0.1)
-         ("rust-winapi" ,rust-winapi-0.2))
-        #:cargo-development-inputs
-        (("rust-regex" ,rust-regex-0.1)
-         ("rust-rustc-serialize" ,rust-rustc-serialize-0.3))))))
-
 (define-public rust-dbl-0.3
   (package
     (name "rust-dbl")