diff --git a/gnu/packages/guile.scm b/gnu/packages/guile.scm
index b1447a1d2e..6004840acb 100644
--- a/gnu/packages/guile.scm
+++ b/gnu/packages/guile.scm
@@ -3,7 +3,7 @@
 ;;; Copyright © 2014, 2015, 2018 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015, 2017 Christopher Allan Webber <cwebber@dustycloud.org>
 ;;; Copyright © 2016 Alex Sassmannshausen <alex@pompo.co>
-;;; Copyright © 2016, 2017, 2018 Ricardo Wurmus <rekado@elephly.net>
+;;; Copyright © 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2016 Erik Edrosa <erik.edrosa@gmail.com>
 ;;; Copyright © 2016 Eraim Flashner <efraim@flashner.co.il>
 ;;; Copyright © 2016, 2017 Alex Kost <alezost@gmail.com>
@@ -1288,7 +1288,7 @@ key-value cache and store.")
 (define-public guile-wisp
   (package
     (name "guile-wisp")
-    (version "0.9.8")
+    (version "0.9.9")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://bitbucket.org/ArneBab/"
@@ -1296,7 +1296,7 @@ key-value cache and store.")
                                   version ".tar.gz"))
               (sha256
                (base32
-                "1f2bbicq1rxnwmiplrm4r75wj06w385mjkyvi7g4k740bgwcrzxr"))))
+                "1xa0f0fvcrimqap50azv5872bfx8jbhc6baxa1prpbwcksbh8gdz"))))
     (build-system gnu-build-system)
     (arguments
      `(#:modules ((guix build gnu-build-system)