diff --git a/CHANGELOG.md b/CHANGELOG.md
index fc8a1d569..0890e2501 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ The changelog for SRS.
 
 ## SRS 4.0 Changelog
 
+* v4.0, 2021-06-28, Merge [#2438](https://github.com/ossrs/srs/pull/2438), fix losing of last HLS ts file 4.0.133
 * v4.0, 2021-06-27, Squash for [#2424](https://github.com/ossrs/srs/issues/2424), query the latest available version. 4.0.132
 * v4.0, 2021-06-24, Merge [#2429](https://github.com/ossrs/srs/pull/2429) to fix SRT bug. 4.0.131
 * v4.0, 2021-06-21, Fix [#2413](https://github.com/ossrs/srs/issues/2413), fix RTMP to RTC bug 4.0.130
diff --git a/trunk/src/app/srs_app_hls.cpp b/trunk/src/app/srs_app_hls.cpp
index e035b67af..144045064 100644
--- a/trunk/src/app/srs_app_hls.cpp
+++ b/trunk/src/app/srs_app_hls.cpp
@@ -923,10 +923,6 @@ srs_error_t SrsHlsController::on_unpublish()
 {
     srs_error_t err = srs_success;
 
-    if ((err = muxer->on_unpublish()) != srs_success) {
-        return srs_error_wrap(err, "muxer unpublish");
-    }
-    
     if ((err = muxer->flush_audio(tsmc)) != srs_success) {
         return srs_error_wrap(err, "hls: flush audio");
     }
@@ -934,6 +930,10 @@ srs_error_t SrsHlsController::on_unpublish()
     if ((err = muxer->segment_close()) != srs_success) {
         return srs_error_wrap(err, "hls: segment close");
     }
+
+    if ((err = muxer->on_unpublish()) != srs_success) {
+        return srs_error_wrap(err, "muxer unpublish");
+    }
     
     return err;
 }
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index 139fb2cfa..4d44e09cc 100644
--- a/trunk/src/core/srs_core_version4.hpp
+++ b/trunk/src/core/srs_core_version4.hpp
@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       4
 #define VERSION_MINOR       0
-#define VERSION_REVISION    132
+#define VERSION_REVISION    133
 
 #endif