diff --git a/0001-Glib-Threads-Private-Fix-gobj.patch b/0001-Glib-Threads-Private-Fix-gobj.patch
deleted file mode 100644
index c953513..0000000
--- a/0001-Glib-Threads-Private-Fix-gobj.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 37d57ae9572b7d74aa385a30313eceae7f2d3fce Mon Sep 17 00:00:00 2001
-From: Kjell Ahlstedt <kjellahlstedt@gmail.com>
-Date: Wed, 20 Dec 2017 20:00:32 +0100
-Subject: [PATCH] Glib::Threads::Private: Fix gobj()
-
-Bug 791711
----
- glib/src/threads.hg | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/glib/src/threads.hg b/glib/src/threads.hg
-index 86d7a17b62f4..c82a6130bbeb 100644
---- a/glib/src/threads.hg
-+++ b/glib/src/threads.hg
-@@ -628,7 +628,7 @@ public:
-    */
-   inline void replace(T* data);
- 
--  GPrivate* gobj() { return gobject_; }
-+  GPrivate* gobj() { return &gobject_; }
- 
- private:
-   GPrivate gobject_;
--- 
-2.14.3
-
-diff -urN glibmm-2.54.1-old/glib/glibmm/threads.h glibmm-2.54.1/glib/glibmm/threads.h
---- glibmm-2.54.1-old/glib/glibmm/threads.h	2018-02-02 16:44:05.000000000 +0100
-+++ glibmm-2.54.1/glib/glibmm/threads.h	2018-02-02 16:47:04.000000000 +0100
-@@ -657,7 +657,7 @@
-    */
-   inline void replace(T* data);
- 
--  GPrivate* gobj() { return gobject_; }
-+  GPrivate* gobj() { return &gobject_; }
- 
- private:
-   GPrivate gobject_;
diff --git a/glibmm24.spec b/glibmm24.spec
index 51c998b..99e42b6 100644
--- a/glibmm24.spec
+++ b/glibmm24.spec
@@ -5,17 +5,14 @@
 %global libsigc_version 2.9.1
 
 Name:           glibmm24
-Version:        2.54.1
-Release:        3%{?dist}
+Version:        2.56.0
+Release:        1%{?dist}
 Summary:        C++ interface for the GLib library
 
 License:        LGPLv2+
 URL:            http://www.gtkmm.org/
 Source0:        http://ftp.gnome.org/pub/GNOME/sources/glibmm/%{release_version}/glibmm-%{version}.tar.xz
 
-# Backported from upstream
-Patch0:         0001-Glib-Threads-Private-Fix-gobj.patch
-
 BuildRequires:  glib2-devel >= %{glib2_version}
 BuildRequires:  libsigc++20-devel >= %{libsigc_version}
 BuildRequires:  m4
@@ -55,7 +52,6 @@ This package contains the full API documentation for %{name}.
 
 %prep
 %setup -q -n glibmm-%{version}
-%patch0 -p1
 
 
 %build
@@ -96,6 +92,9 @@ find $RPM_BUILD_ROOT -type f -name "*.la" -exec rm -f {} ';'
 
 
 %changelog
+* Mon Apr 02 2018 Kalev Lember <klember@redhat.com> - 2.56.0-1
+- Update to 2.56.0
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 2.54.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
 
diff --git a/sources b/sources
index 0c5dd04..2e7313b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (glibmm-2.54.1.tar.xz) = 94f2a4d6972684e25e38ff2e6bcfc1e9c5e4d096856d3419320c14166e27e26b1ad69be434337e9b70c23842989988113521aae7a800ef2f29e81f1ae6c25a13
+SHA512 (glibmm-2.56.0.tar.xz) = 65e577009019e30e340ae5fe6e4c854e5a75551b2eb83ad85403d73eb4e77879783162d4c3c354bc37be0be842f0ddffc1977021a5e0c32985fb596d86929c08