diff --git a/gnu/packages/bison.scm b/gnu/packages/bison.scm
index 3e47a2a1b2..71de47762d 100644
--- a/gnu/packages/bison.scm
+++ b/gnu/packages/bison.scm
@@ -53,15 +53,3 @@ (define-public bison
 grammar.  It is versatile enough to have many applications, from parsers for
 simple tools through complex programming languages.")
     (license gpl3+)))
-
-(define-public bison-2.7
-  (package (inherit bison)
-    (version "2.7")
-    (source
-     (origin
-      (method url-fetch)
-      (uri (string-append "mirror://gnu/bison/bison-"
-                          version ".tar.xz"))
-      (sha256
-       (base32
-        "1zd77ilmpv5mi3kr55jrj6ncqlcnyhpianhrwzak2q28cv2cbn23"))))))