diff --git a/gnu/packages/bioconductor.scm b/gnu/packages/bioconductor.scm
index 29dac5b0f1..e5a2d66b2d 100644
--- a/gnu/packages/bioconductor.scm
+++ b/gnu/packages/bioconductor.scm
@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016, 2017, 2018 Roel Janssen <roel@gnu.org>
-;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2017, 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -652,7 +652,7 @@ database is exposed as a @code{TxDb} object.")
 (define-public r-txdb-mmusculus-ucsc-mm10-knowngene
   (package
     (name "r-txdb-mmusculus-ucsc-mm10-knowngene")
-    (version "3.4.4")
+    (version "3.4.7")
     (source (origin
               (method url-fetch)
               ;; We cannot use bioconductor-uri here because this tarball is
@@ -663,7 +663,7 @@ database is exposed as a @code{TxDb} object.")
                                   version ".tar.gz"))
               (sha256
                (base32
-                "01lgxc1fx5nhlpbwjd5zqghkkbmh6axd98ikx4b0spv0jdg6gf39"))))
+                "04impkl8zh1gpwwrpbf19jqznsjrq2306yyhm6cmx6hr1401bd6b"))))
     (properties
      `((upstream-name . "TxDb.Mmusculus.UCSC.mm10.knownGene")))
     (build-system r-build-system)