diff --git a/gnu/packages/mail.scm b/gnu/packages/mail.scm
index 13761fa4b3..6efea78670 100644
--- a/gnu/packages/mail.scm
+++ b/gnu/packages/mail.scm
@@ -1146,7 +1146,7 @@ security functionality including PGP, S/MIME, SSH, and SSL.")
 (define-public mu
   (package
     (name "mu")
-    (version "1.4.15")
+    (version "1.6.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://github.com/djcb/mu/releases/"
@@ -1154,7 +1154,7 @@ security functionality including PGP, S/MIME, SSH, and SSL.")
                                   "mu-" version ".tar.xz"))
               (sha256
                (base32
-                "0ailz0k5fdgq6gdl5m7jxy315b7qn5ckj6xwd49hsiq9vqblwlpp"))))
+                "0jlpkx1486ac8649jc2kxjklzsfaxj9qf2kji4kszy4axd0iwi1p"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)
@@ -1163,7 +1163,7 @@ security functionality including PGP, S/MIME, SSH, and SSL.")
        ("tzdata" ,tzdata-for-tests)))   ; for mu/test/test-mu-query.c
     (inputs
      `(("xapian" ,xapian)
-       ("guile" ,guile-2.2)
+       ("guile" ,guile-3.0)
        ("glib" ,glib)
        ("gmime" ,gmime)))
     (arguments
@@ -1181,43 +1181,32 @@ security functionality including PGP, S/MIME, SSH, and SSL.")
            ;; the lispdir anyway, so we have to modify "configure.ac".
            (lambda _
              (substitute* "configure"
-               (("^ +lispdir=\"\\$\\{lispdir\\}/mu4e/\".*") "")
-               ;; Use latest Guile
-               (("guile-2.0") "guile-2.2"))
-             (substitute* '("guile/Makefile.in"
-                            "guile/mu/Makefile.in")
-               (("share/guile/site/2.0/") "share/guile/site/2.2/"))
-             #t))
+               (("^ +lispdir=\"\\$\\{lispdir\\}/mu4e/\".*") ""))))
          (add-after 'unpack 'patch-bin-sh-in-tests
            (lambda _
-             (substitute* '("guile/tests/test-mu-guile.c"
-                            "mu/test-mu-cmd.c"
-                            "mu/test-mu-cmd-cfind.c"
-                            "mu/test-mu-query.c"
-                            "mu/test-mu-threads.c")
-               (("/bin/sh") (which "sh")))
-             #t))
+             (substitute* '("guile/tests/test-mu-guile.cc"
+                            "mu/test-mu-cmd.cc"
+                            "mu/test-mu-cmd-cfind.cc"
+                            "mu/test-mu-query.cc")
+               (("/bin/sh") (which "sh")))))
          (add-before 'install 'fix-ffi
            (lambda* (#:key outputs #:allow-other-keys)
              (substitute* "guile/mu.scm"
                (("\"libguile-mu\"")
                 (format #f "\"~a/lib/libguile-mu\""
-                        (assoc-ref outputs "out"))))
-             #t))
+                        (assoc-ref outputs "out"))))))
          (add-before 'check 'check-tz-setup
            (lambda* (#:key inputs #:allow-other-keys)
              ;; For mu/test/test-mu-query.c
              (setenv "TZDIR"
                      (string-append (assoc-ref inputs "tzdata")
-                                    "/share/zoneinfo"))
-             #t))
+                                    "/share/zoneinfo"))))
          (add-after 'install 'install-emacs-autoloads
            (lambda* (#:key outputs #:allow-other-keys)
              (emacs-generate-autoloads
               "mu4e"
               (string-append (assoc-ref outputs "out")
-                             "/share/emacs/site-lisp"))
-             #t)))))
+                             "/share/emacs/site-lisp")))))))
     (home-page "https://www.djcbsoftware.nl/code/mu/")
     (synopsis "Quickly find emails")
     (description