diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 20fec5b6a6..6302409775 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -50315,31 +50315,6 @@ are securely wiped from memory when dropped.")
 SECG elliptic curve group secp256k1 and related utilities.")
     (license license:cc0)))
 
-(define-public rust-secp256k1-0.20
-  (package
-    (inherit rust-secp256k1-0.21)
-    (name "rust-secp256k1")
-    (version "0.20.3")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (crate-uri "secp256k1" version))
-        (file-name (string-append name "-" version ".tar.gz"))
-        (sha256
-         (base32 "02kxhfgy85zg7w2yyvnzrr7myk1mckvg99z6pbazxl1nwvm3rl4p"))))
-    (arguments
-      `(#:cargo-inputs
-        (("rust-bitcoin-hashes" ,rust-bitcoin-hashes-0.9)
-         ("rust-rand" ,rust-rand-0.6)
-         ("rust-secp256k1-sys" ,rust-secp256k1-sys-0.4)
-         ("rust-serde" ,rust-serde-1))
-        #:cargo-development-inputs
-        (("rust-bitcoin-hashes" ,rust-bitcoin-hashes-0.10)
-         ("rust-rand" ,rust-rand-0.6)
-         ("rust-rand-core" ,rust-rand-core-0.4)
-         ("rust-serde-test" ,rust-serde-test-1)
-         ("rust-wasm-bindgen-test" ,rust-wasm-bindgen-test-0.3))))))
-
 (define-public rust-secp256k1-sys-0.4
   (package
     (name "rust-secp256k1-sys")