diff --git a/gnu/packages/ebook.scm b/gnu/packages/ebook.scm
index 05165774d7..9834ca64e4 100644
--- a/gnu/packages/ebook.scm
+++ b/gnu/packages/ebook.scm
@@ -60,7 +60,7 @@ (define-public chmlib
 (define-public calibre
   (package
     (name "calibre")
-    (version "2.22.0")
+    (version "2.23.0")
     (source
       (origin
         (method url-fetch)
@@ -69,7 +69,7 @@ (define-public calibre
                             version ".tar.xz"))
         (sha256
           (base32
-           "19hpm5xzhjr0nfjm6xyqxjx2iwm3iw7y6bbs11337arfrxn16ly0"))
+           "0n99la1pacrw4ahb3wk0p68120p7j7v76mvpaf4qnkxy1vfdif7d"))
         ;; Remove non-free or doubtful code, see
         ;; https://lists.gnu.org/archive/html/guix-devel/2015-02/msg00478.html
         (modules '((guix build utils)))