diff --git a/elisp/ghc.el b/elisp/ghc.el
index ec14a81..5c35f05 100644
--- a/elisp/ghc.el
+++ b/elisp/ghc.el
@@ -28,7 +28,7 @@
 	       (< emacs-minor-version minor)))
       (error "ghc-mod requires at least Emacs %d.%d" major minor)))
 
-(defconst ghc-version "5.5.0.0")
+(defconst ghc-version "5.6.0.0")
 
 (defgroup ghc-mod '() "ghc-mod customization")
 
diff --git a/ghc-mod.cabal b/ghc-mod.cabal
index 1cfdc3d..d2d8e9d 100644
--- a/ghc-mod.cabal
+++ b/ghc-mod.cabal
@@ -1,5 +1,5 @@
 Name:                   ghc-mod
-Version:                5.5.0.0
+Version:                5.6.0.0
 Author:                 Kazu Yamamoto <kazu@iij.ad.jp>,
                         Daniel Gröber <dxld@darkboxed.org>,
                         Alejandro Serrano <trupill@gmail.com>,
@@ -97,7 +97,7 @@ Extra-Source-Files:     ChangeLog
 
 Custom-Setup
   Setup-Depends:         base
-                       , Cabal
+                       , Cabal < 1.25
                        , containers
                        , filepath
                        , process