diff --git a/.gitignore b/.gitignore
index 6db3e3a..2cfee67 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,4 @@
 /ibus-libpinyin-1.7.2.tar.gz
 /ibus-libpinyin-1.7.3.tar.gz
 /ibus-libpinyin-1.7.4.tar.gz
+/ibus-libpinyin-1.7.91.tar.gz
diff --git a/ibus-libpinyin-1.7.x-head.patch b/ibus-libpinyin-1.8.x-head.patch
similarity index 100%
rename from ibus-libpinyin-1.7.x-head.patch
rename to ibus-libpinyin-1.8.x-head.patch
diff --git a/ibus-libpinyin.spec b/ibus-libpinyin.spec
index 71f88a5..211410a 100644
--- a/ibus-libpinyin.spec
+++ b/ibus-libpinyin.spec
@@ -1,19 +1,19 @@
 %global snapshot 0
 
 Name:       ibus-libpinyin
-Version:    1.7.4
-Release:    2%{?dist}
+Version:    1.7.91
+Release:    1%{?dist}
 Summary:    Intelligent Pinyin engine based on libpinyin for IBus
 License:    GPLv2+
 Group:      System Environment/Libraries
 URL:        https://github.com/libpinyin/ibus-libpinyin
 Source0:    http://downloads.sourceforge.net/libpinyin/ibus-libpinyin/%{name}-%{version}.tar.gz
 %if %snapshot
-Patch0:     ibus-libpinyin-1.7.x-head.patch
+Patch0:     ibus-libpinyin-1.8.x-head.patch
 %endif
 
 Requires:       python3-gobject
-Requires:       ibus >= 1.5.4
+Requires:       ibus >= 1.5.11
 BuildRequires:  gettext-devel
 BuildRequires:  intltool
 BuildRequires:  libtool
@@ -23,15 +23,12 @@ BuildRequires:  libuuid-devel
 BuildRequires:  lua-devel
 BuildRequires:  python3-devel
 BuildRequires:  desktop-file-utils
-BuildRequires:  ibus-devel >= 1.5.4
-BuildRequires:  libpinyin-devel >= 1.0.99
-BuildRequires:  gtk3-devel
+BuildRequires:  ibus-devel >= 1.5.11
+BuildRequires:  libpinyin-devel >= 1.5.91
 
 # Requires(post): sqlite
 
-Requires:   ibus >= 1.2.0
-Requires:   libpinyin >= 0.9.91
-Requires:   libpinyin-data%{?_isa} >= 0.9.91
+Requires:   libpinyin-data%{?_isa} >= 1.5.91
 
 Obsoletes: ibus-pinyin < 1.4.0-17
 
@@ -89,6 +86,9 @@ make install DESTDIR=$RPM_BUILD_ROOT INSTALL="install -p"
 %{_datadir}/ibus/component/*
 
 %changelog
+* Mon Jul 18 2016 Peng Wu <pwu@redhat.com> - 1.7.91-1
+- Update to 1.7.91
+
 * Thu Feb 04 2016 Fedora Release Engineering <releng@fedoraproject.org> - 1.7.4-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
 
diff --git a/sources b/sources
index 96ab28a..b7f30c3 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-02fc900984d0a98db9fa550955e07778  ibus-libpinyin-1.7.4.tar.gz
+1a18e1e5f5460b5be240a7c583b8f6ce  ibus-libpinyin-1.7.91.tar.gz