diff --git a/README.md b/README.md
index d709148ed..93ad11ba0 100755
--- a/README.md
+++ b/README.md
@@ -159,6 +159,7 @@ For previous versions, please read:
 
 ## V4 changes
 
+* v4.0, 2020-07-04, Fix some bugs for RTC. 4.0.34
 * v4.0, 2020-07-03, Merge [#1830][bug #1830] to fix bugs in GB28181. 4.0.33
 * v4.0, 2020-06-24, Support static link c++ libraries. 4.0.32
 * v4.0, 2020-06-23, Change log cid from int to string. 4.0.31
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index b7dc91748..be4cb15ce 100644
--- a/trunk/src/core/srs_core_version4.hpp
+++ b/trunk/src/core/srs_core_version4.hpp
@@ -24,6 +24,6 @@
 #ifndef SRS_CORE_VERSION4_HPP
 #define SRS_CORE_VERSION4_HPP
 
-#define SRS_VERSION4_REVISION 33
+#define SRS_VERSION4_REVISION 34
 
 #endif