diff --git a/gnu/packages/wm.scm b/gnu/packages/wm.scm
index 615ac788ed..61cbedef5c 100644
--- a/gnu/packages/wm.scm
+++ b/gnu/packages/wm.scm
@@ -694,14 +694,14 @@ (define-public xmonad
 (define-public xmobar
   (package
     (name "xmobar")
-    (version "0.33")
+    (version "0.34")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://hackage/package/xmobar/"
                                   "xmobar-" version ".tar.gz"))
               (sha256
                (base32
-                "1hr3qqykc5givcpcwrr9f2y920jmiinmxm5mcy6qgpgymgwqb618"))))
+                "0x09xbz7y9ay0046j1xpr9jjk5jqivqi06vm3q6mhcrgc4y922rx"))))
     (build-system haskell-build-system)
     (native-inputs
      `(("ghc-hspec" ,ghc-hspec)