diff --git a/ibus-libpinyin-use-opencc.patch b/ibus-libpinyin-use-opencc.patch
new file mode 100644
index 0000000..aa85037
--- /dev/null
+++ b/ibus-libpinyin-use-opencc.patch
@@ -0,0 +1,57 @@
+Index: ibus-libpinyin-1.6.92/src/PYSimpTradConverter.cc
+===================================================================
+--- ibus-libpinyin-1.6.92.orig/src/PYSimpTradConverter.cc
++++ ibus-libpinyin-1.6.92/src/PYSimpTradConverter.cc
+@@ -40,44 +40,27 @@ namespace PY {
+ #ifdef HAVE_OPENCC
+ 
+ class opencc {
+-    static const int BUFFER_SIZE = 64;
+ public:
+     opencc (void)
+     {
+-        m_od = opencc_open (OPENCC_DEFAULT_CONFIG_SIMP_TO_TRAD);
+-        g_assert (m_od != NULL);
++        m_cc = opencc_open (OPENCC_DEFAULT_CONFIG_SIMP_TO_TRAD);
++        g_assert (m_cc != NULL);
+     }
+ 
+     ~opencc (void)
+     {
+-        opencc_close(m_od);
++        opencc_close(m_cc);
+     }
+ 
+     void convert (const gchar *in, String &out)
+     {
+-        glong n_char;
+-        gunichar *in_ucs4 = g_utf8_to_ucs4_fast (in, -1, &n_char);
+-
+-        ucs4_t *pinbuf = (ucs4_t *)in_ucs4;
+-        size_t inbuf_left = n_char;
+-        while (inbuf_left != 0) {
+-            ucs4_t *poutbuf = (ucs4_t *)m_buffer;
+-            size_t outbuf_left = BUFFER_SIZE;
+-            size_t retval = opencc_convert(m_od, &pinbuf, &inbuf_left, &poutbuf, &outbuf_left);
+-            if (retval == (size_t) -1) {
+-                /* append left chars in pinbuf */
+-                g_warning ("opencc_convert return failed");
+-                out << (gunichar *) pinbuf;
+-                break;
+-            }
+-            *poutbuf = L'\0';
+-            out << m_buffer;
+-        }
+-        g_free (in_ucs4);
++        char * converted = opencc_convert_utf8 (m_cc, in, -1);
++        g_assert (converted != NULL);
++        out = converted;
++        opencc_convert_utf8_free (converted);
+     }
+ private:
+-    opencc_t m_od;
+-    gunichar m_buffer[BUFFER_SIZE + 1];
++    opencc_t m_cc;
+ };
+ 
+ void
diff --git a/ibus-libpinyin.spec b/ibus-libpinyin.spec
index 3337b2f..e01723c 100644
--- a/ibus-libpinyin.spec
+++ b/ibus-libpinyin.spec
@@ -2,7 +2,7 @@
 
 Name:       ibus-libpinyin
 Version:    1.6.92
-Release:    4%{?dist}
+Release:    5%{?dist}
 Summary:    Intelligent Pinyin engine based on libpinyin for IBus
 License:    GPLv2+
 Group:      System Environment/Libraries
@@ -11,6 +11,7 @@ Source0:    http://downloads.sourceforge.net/libpinyin/ibus-libpinyin/%{name}-%{
 %if %snapshot
 Patch0:     ibus-libpinyin-1.7.x-head.patch
 %endif
+Patch1:     ibus-libpinyin-use-opencc.patch
 
 Requires:       pygobject3
 Requires:       ibus >= 1.5.4
@@ -20,7 +21,7 @@ BuildRequires:  libtool
 BuildRequires:  pkgconfig
 BuildRequires:  sqlite-devel
 BuildRequires:  libuuid-devel
-BuildRequires:  opencc-devel
+BuildRequires:  opencc-devel >= 1.0.2
 BuildRequires:  lua-devel
 BuildRequires:  python2-devel
 BuildRequires:  desktop-file-utils
@@ -44,6 +45,7 @@ input method based on libpinyin for IBus.
 %if %snapshot
 %patch0 -p1 -b .head
 %endif
+%patch1 -p1 -b .opencc
 
 %build
 %configure --disable-static \
@@ -88,6 +90,9 @@ make install DESTDIR=$RPM_BUILD_ROOT INSTALL="install -p"
 %{_datadir}/ibus/component/*
 
 %changelog
+* Wed Jan  7 2015 Peng Wu <pwu@redhat.com> - 1.6.92-5
+- Use opencc 1.0.2
+
 * Sat Aug 16 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.6.92-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild