diff --git a/README.md b/README.md
index cb25e4a4d..d312d5bd5 100755
--- a/README.md
+++ b/README.md
@@ -334,6 +334,7 @@ Remark:
 
 ## History
 
+* v2.0, 2018-10-08, Merge [#1236][bug #1236], Fix sleep bug in us. 2.0.257
 * v2.0, 2018-10-08, Merge [#1237][bug #1237], Support param for transcoder. 2.0.256
 * <strong>v2.0, 2018-08-12, [2.0 release4(2.0.255)][r2.0r4] released. 86915 lines.</strong>
 * v2.0, 2018-08-12, For [#1202][bug #1202], Support edge/forward to Aliyun CDN. 2.0.255 
@@ -1329,6 +1330,7 @@ Winlin
 [bug #910]: https://github.com/ossrs/srs/issues/910
 [bug #1202]: https://github.com/ossrs/srs/issues/1202
 [bug #1237]: https://github.com/ossrs/srs/issues/1237
+[bug #1236]: https://github.com/ossrs/srs/issues/1236
 [bug #xxxxxxxxxx]: https://github.com/ossrs/srs/issues/xxxxxxxxxx
 
 [exo #828]: https://github.com/google/ExoPlayer/pull/828
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 841780e18..c4083e310 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       2
 #define VERSION_MINOR       0
-#define VERSION_REVISION    256
+#define VERSION_REVISION    257
 
 // generated by configure, only macros.
 #include <srs_auto_headers.hpp>