diff --git a/ghc-fast-logger.changes b/ghc-fast-logger.changes
index 88bd5bd..ec24da3 100644
--- a/ghc-fast-logger.changes
+++ b/ghc-fast-logger.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Jul 10 17:23:22 UTC 2016 - psimons@suse.com
+
+- Update to version 2.4.6 revision 0 with cabal2obs.
+- Remove obsolete remove-bytestring-builder.patch.
+
 -------------------------------------------------------------------
 Wed Apr 27 18:23:38 UTC 2016 - mimi.vx@gmail.com
 
diff --git a/ghc-fast-logger.spec b/ghc-fast-logger.spec
index 38ccc32..83a4445 100644
--- a/ghc-fast-logger.spec
+++ b/ghc-fast-logger.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package ghc-fast-logger
 #
-# Copyright (c) 2015 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -15,35 +15,31 @@
 # Please submit bugfixes or comments via http://bugs.opensuse.org/
 #
 
+
 %global pkg_name fast-logger
-
 %bcond_with tests
-
-Name:           ghc-fast-logger
+Name:           ghc-%{pkg_name}
 Version:        2.4.6
 Release:        0
 Summary:        A fast logging system
-Group:          System/Libraries
-
 License:        BSD-3-Clause
+Group:          System/Libraries
 Url:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
-# PATCH-FIX-UPSTREAM remove-bytestring-builder.patch - remove obsolete deps from *.cabal
-Patch0:         remove-bytestring-builder.patch
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
-
 BuildRequires:  ghc-Cabal-devel
-BuildRequires:  ghc-rpm-macros
 # Begin cabal-rpm deps:
 BuildRequires:  ghc-array-devel
 BuildRequires:  ghc-auto-update-devel
+BuildRequires:  ghc-bytestring-builder-devel
 BuildRequires:  ghc-bytestring-devel
 BuildRequires:  ghc-directory-devel
 BuildRequires:  ghc-easy-file-devel
 BuildRequires:  ghc-filepath-devel
+BuildRequires:  ghc-rpm-macros
 BuildRequires:  ghc-text-devel
 BuildRequires:  ghc-unix-devel
 BuildRequires:  ghc-unix-time-devel
+BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 %if %{with tests}
 BuildRequires:  ghc-hspec-devel
 %endif
@@ -52,22 +48,20 @@ BuildRequires:  ghc-hspec-devel
 %description
 A fast logging system.
 
-
 %package devel
 Summary:        Haskell %{pkg_name} library development files
 Group:          Development/Libraries/Other
+Requires:       %{name} = %{version}-%{release}
 Requires:       ghc-compiler = %{ghc_version}
 Requires(post): ghc-compiler = %{ghc_version}
 Requires(postun): ghc-compiler = %{ghc_version}
-Requires:       %{name} = %{version}-%{release}
 
 %description devel
 This package provides the Haskell %{pkg_name} library development files.
 
-
 %prep
 %setup -q -n %{pkg_name}-%{version}
-%patch0 -p1
+
 
 %build
 %ghc_lib_build
@@ -79,26 +73,22 @@ This package provides the Haskell %{pkg_name} library development files.
 
 %check
 %if %{with tests}
-%cabal test
+%{cabal} test
 %endif
 
 
 %post devel
 %ghc_pkg_recache
 
-
 %postun devel
 %ghc_pkg_recache
 
-
 %files -f %{name}.files
 %defattr(-,root,root,-)
 %doc LICENSE
 
-
 %files devel -f %{name}-devel.files
 %defattr(-,root,root,-)
-%doc README.md ChangeLog.md
-
+%doc ChangeLog.md README.md
 
 %changelog
diff --git a/remove-bytestring-builder.patch b/remove-bytestring-builder.patch
deleted file mode 100644
index 70773f5..0000000
--- a/remove-bytestring-builder.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-Index: fast-logger-2.4.5/fast-logger.cabal
-===================================================================
---- fast-logger-2.4.5.orig/fast-logger.cabal
-+++ fast-logger-2.4.5/fast-logger.cabal
-@@ -26,7 +26,6 @@ Library
-                       , auto-update >= 0.1.2
-                       , easy-file >= 0.2
-                       , bytestring
--                      , bytestring-builder
-                       , directory
-                       , filepath
-                       , text