diff --git a/call/version.cc b/call/version.cc
index 576fbee..ba18b2c 100644
--- a/call/version.cc
+++ b/call/version.cc
@@ -13,7 +13,7 @@
 namespace webrtc {
 
 // The timestamp is always in UTC.
-const char* const kSourceTimestamp = "WebRTC source stamp 2021-09-19T04:02:28";
+const char* const kSourceTimestamp = "WebRTC source stamp 2021-09-21T04:02:15";
 
 void LoadWebRTCVersionInRegister() {
   // Using volatile to instruct the compiler to not optimize `p` away even