diff --git a/srt-1.5.2.tar.gz b/srt-1.5.2.tar.gz
deleted file mode 100644
index 3876e93..0000000
--- a/srt-1.5.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:463970a3f575446b3f55abb6f323d5476c963c77b3c975cd902e9c87cdd9a92c
-size 1699747
diff --git a/srt-1.5.3.tar.gz b/srt-1.5.3.tar.gz
new file mode 100644
index 0000000..e2f8911
--- /dev/null
+++ b/srt-1.5.3.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:befaeb16f628c46387b898df02bc6fba84868e86a6f6d8294755375b9932d777
+size 1706632
diff --git a/srt.changes b/srt.changes
index 2cf4a7f..ccffa99 100644
--- a/srt.changes
+++ b/srt.changes
@@ -1,3 +1,29 @@
+-------------------------------------------------------------------
+Mon Oct  2 08:10:49 UTC 2023 - pgajdos@suse.com
+
+- version update to 1.5.3
+  * New Features
+    - PR #2714: Added maximum BW limit for retransmissions. See SRTO_MAXREXMITBW.
+  * Important Bug Fixes
+    - PR #2632: Use overlapped WSASendTo to avoid UDP sending losses.
+    - PR #2766: Fixed spurious group read-ready epoll events.
+    - PR #2772: Fixed RCV buffer initialization in Rendezvous. ⚠️
+    - PR #2757: Fix memory leak on queuing connection initialization packets.
+    - PR #2745: Fix hang up on not enough space in the RCV buffer.
+    - PR #2740: Fix possible tsbpd() deadlock with processCtrlShutdown().
+    - PR #2692: Rejection not undertaken in rendezvous after KMX failure.
+    - PR #2774: Fix rendezvous connection mode when processing resulted in ACCEPT it was still sending rejection.
+    - PR #2778: Drop unencrypted packets in AES-GCM mode.
+  * Build
+    - PR #2779, #2780: Fix the build for targets without IP_ADD_SOURCE_MEMBERSHIP.
+    - PR #2784: Added missing public header files in Windows binary installer.
+  * Unit Tests
+    - PR #2681: Added custom main with transparent parameters.
+  * Documentation
+    - PR #2765: Updated the explicit information for binding to IPv6 wildcard.
+    - PR #2785: Fixed API doc: SRT_INVALID_SOCK
+  * https://github.com/Haivision/srt/releases/tag/v1.5.3
+
 -------------------------------------------------------------------
 Wed Aug  2 10:29:08 UTC 2023 - Valentin Lefebvre <valentin.lefebvre@suse.com>
 
diff --git a/srt.spec b/srt.spec
index c1fd3c9..3556cec 100644
--- a/srt.spec
+++ b/srt.spec
@@ -19,7 +19,7 @@
 %define sover 1_5
 
 Name:           srt
-Version:        1.5.2
+Version:        1.5.3
 Release:        0
 Summary:        Secure Reliable Transport (SRT)
 License:        MPL-2.0