diff --git a/trunk/doc/CHANGELOG.md b/trunk/doc/CHANGELOG.md
index a0a532c1f..47626038a 100644
--- a/trunk/doc/CHANGELOG.md
+++ b/trunk/doc/CHANGELOG.md
@@ -8,6 +8,7 @@ The changelog for SRS.
 
 ## SRS 4.0 Changelog
 
+* v4.0, 2021-10-30, Merge [#2552](https://github.com/ossrs/srs/pull/2552): Script: Refine CentOS7 service script to restart SRS. v4.0.190
 * v4.0, 2021-10-30, Merge [#2397](https://github.com/ossrs/srs/pull/2397): SRTP: Patch libsrtp2 to fix GCC10 build fail. v4.0.189
 * v4.0, 2021-10-30, Merge [#2284](https://github.com/ossrs/srs/pull/2284): Forward: Fast quit when cycle fail. v4.0.188
 * v4.0, 2021-10-28, Merge [#2186](https://github.com/ossrs/srs/pull/2186): Gop: Ignore zero timestamp when shrinking. v4.0.187
diff --git a/trunk/src/core/srs_core_version4.hpp b/trunk/src/core/srs_core_version4.hpp
index 02549b6c9..891b0e99f 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    189
+#define VERSION_REVISION    190
 
 #endif
diff --git a/trunk/usr/lib/systemd/system/srs.service b/trunk/usr/lib/systemd/system/srs.service
index b76bc930a..0a27b9a96 100644
--- a/trunk/usr/lib/systemd/system/srs.service
+++ b/trunk/usr/lib/systemd/system/srs.service
@@ -4,6 +4,7 @@ After=network.target
 
 [Service]
 Type=forking
+Restart=always
 ExecStart=/etc/init.d/srs start
 ExecReload=/etc/init.d/srs reload
 ExecStop=/etc/init.d/srs stop