diff --git a/.gitignore b/.gitignore
index 3171799..7015e1e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,3 +37,4 @@
 /libpinyin-1.6.91.tar.gz
 /libpinyin-1.7.0.tar.gz
 /libpinyin-1.9.91.tar.gz
+/libpinyin-1.9.92.tar.gz
diff --git a/libpinyin-2.0.x-head.patch b/libpinyin-2.0.x-head.patch
index 9861c80..e69de29 100644
--- a/libpinyin-2.0.x-head.patch
+++ b/libpinyin-2.0.x-head.patch
@@ -1,27 +0,0 @@
-diff --git a/src/include/memory_chunk.h b/src/include/memory_chunk.h
-index 83b8ad9..044fa0d 100644
---- a/src/include/memory_chunk.h
-+++ b/src/include/memory_chunk.h
-@@ -60,7 +60,7 @@ private:
-     char * m_allocated; //one data pass the end.
-     free_func_t m_free_func;
- 
--    const guint32 header = sizeof(guint32) * 2;
-+    const gint32 header = sizeof(guint32) * 2;
- 
- private:
-     void freemem(){
-diff --git a/src/pinyin.cpp b/src/pinyin.cpp
-index 1a5132e..57defcc 100644
---- a/src/pinyin.cpp
-+++ b/src/pinyin.cpp
-@@ -1172,6 +1172,9 @@ bool pinyin_get_sentence(pinyin_instance_t * instance,
-     pinyin_context_t * & context = instance->m_context;
-     NBestMatchResults & results = instance->m_nbest_results;
- 
-+    if (0 == results.size())
-+        return false;
-+
-     MatchResult result = NULL;
-     assert(index < results.size());
-     assert(results.get_result(index, result));
diff --git a/libpinyin.spec b/libpinyin.spec
index 898e0f8..fa2c7ae 100644
--- a/libpinyin.spec
+++ b/libpinyin.spec
@@ -1,8 +1,8 @@
-%global snapshot 1
+%global snapshot 0
 
 Name:           libpinyin
-Version:        1.9.91
-Release:        2%{?dist}
+Version:        1.9.92
+Release:        1%{?dist}
 Summary:        Library to deal with pinyin
 
 License:        GPLv3+
@@ -92,6 +92,10 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 
 
 %changelog
+* Tue Mar  7 2017 Peng Wu <pwu@redhat.com> - 1.9.92-1
+- Update to 1.9.92
+- fixes crash
+
 * Tue Feb 28 2017 Peng Wu <pwu@redhat.com> - 1.9.91-2
 - Fixes crash in Double Pinyin
 
diff --git a/sources b/sources
index 690b04f..fe7041e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libpinyin-1.9.91.tar.gz) = abbd549b146e8975c982f027f11989dedbfe9d7b84f67f56677df78f70e0330041795ea311ace91a35613ac3fec9e8eeaa5012aa80ec9892274ddf1674e2e5a4
+SHA512 (libpinyin-1.9.92.tar.gz) = 5406e9be320775315694c99ae801dd90ed82df7b12ad49f7637644df9f85ce15ef501d798e78f1fedbfdf15eb9ed4f227f65fad3edafd556579bddc7d837cc7c