diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index df1ca764aa..33c3fa0494 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -2258,18 +2258,24 @@ (define-public ocaml-base64
 (define-public ocamlify
   (package
     (name "ocamlify")
-    (version "0.0.1")
+    (version "0.0.2")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "https://download.ocamlcore.org/ocamlify/ocamlify/"
                            version "/ocamlify-" version ".tar.gz"))
        (sha256
-        (base32 "1j9nb3vjqbdsx3d6jazixgrh776051zkrc06nsc5q5ilp1jhrwkm"))))
+        (base32 "1f0fghvlbfryf5h3j4as7vcqrgfjb4c8abl5y0y5h069vs4kp5ii"))))
     (build-system ocaml-build-system)
     (arguments
      `(#:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'disable-safe-string
+           ;; Work around ‘Error: This expression has type string but an
+           ;; expression was expected of type bytes’ since OCaml 4.06.
+           (lambda _
+             (setenv "OCAMLPARAM" "safe-string=0,_")
+             #t))
          (delete 'check)                ; tests are run during the build
          (replace 'configure
            (lambda* (#:key outputs #:allow-other-keys)