diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 6307621f84..095e2ecaed 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -36328,35 +36328,6 @@ (define-public rust-insta-0.16
         ("rust-serde-json" ,rust-serde-json-1)
         ("rust-serde-yaml" ,rust-serde-yaml-0.8))))))
 
-(define-public rust-insta-0.12
-  (package
-    (inherit rust-insta-0.16)
-    (name "rust-insta")
-    (version "0.12.0")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (crate-uri "insta" version))
-       (file-name (string-append name "-" version ".tar.gz"))
-       (sha256
-        (base32 "0j8k8rfcbdvh2s3jfj9hj7mspl32rqxqa393cw55jhg8cb09sj8d"))))
-    (arguments
-     `(#:cargo-test-flags
-       '("--release"
-         "--"
-         "--skip=runtime::test_format_rust_expression")
-       #:cargo-inputs
-       (("rust-console" ,rust-console-0.9)
-        ("rust-difference" ,rust-difference-2)
-        ("rust-lazy-static" ,rust-lazy-static-1)
-        ("rust-pest" ,rust-pest-2)
-        ("rust-pest-derive" ,rust-pest-derive-2)
-        ("rust-ron" ,rust-ron-0.5)
-        ("rust-serde" ,rust-serde-1)
-        ("rust-serde-json" ,rust-serde-json-1)
-        ("rust-serde-yaml" ,rust-serde-yaml-0.8)
-        ("rust-uuid" ,rust-uuid-0.8))))))
-
 (define-public rust-insta-0.8
   (package
     (inherit rust-insta-0.16)