diff --git a/README.md b/README.md
index 5bc0dec70..58baae36f 100755
--- a/README.md
+++ b/README.md
@@ -186,6 +186,7 @@ Other documents:
 
 ## V4 changes
 
+* v4.0, 2021-03-08, DTLS: Fix dead loop by duplicated Alert message. 4.0.83
 * v4.0, 2021-03-08, Fix bug when client DTLS is passive. 4.0.82
 * v4.0, 2021-03-03, Fix [#2106][bug #2106], [#2011][bug #2011], RTMP/AAC transcode to Opus bug. 4.0.81
 * v4.0, 2021-03-02, Refine build script for FFmpeg and SRTP. 4.0.80
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index 44a734725..c67ed23d7 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 82
+#define SRS_VERSION4_REVISION 83
 
 #endif