diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index cca9c0550..254efa40e 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -66,7 +66,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 	(void)0
 
 // current release version
-#define RTMP_SIG_SRS_VERSION "0.8.0" 
+#define RTMP_SIG_SRS_VERSION "0.9.0"
 // server info.
 #define RTMP_SIG_SRS_KEY "srs"
 #define RTMP_SIG_SRS_ROLE "origin server"