diff --git a/gnu/packages/mes.scm b/gnu/packages/mes.scm
index 17a58fbf61..2823297e3f 100644
--- a/gnu/packages/mes.scm
+++ b/gnu/packages/mes.scm
@@ -98,14 +98,14 @@ extensive examples, including parsers for the Javascript and C99 languages.")
 (define-public nyacc
   (package
     (inherit nyacc-0.99)
-    (version "1.06.5")
+    (version "1.07.0")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://savannah/nyacc/nyacc-"
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1fbzz9bm4mkz4j40l2z02zjlbqj82dmv2ayz83zl3j8gj6z3lpdg"))
+                "01qb6h6bk684z8xda5d71q5f5l2z3q9jjz36if3jbpjc7b8dxjap"))
               (modules '((guix build utils)))
               (snippet
                '(substitute* "configure"