diff --git a/call/version.cc b/call/version.cc
index 150cf31..51cdb97 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 2021-10-08T04:04:58";
+const char* const kSourceTimestamp = "WebRTC source stamp 2021-12-08T04:04:49";
 
 void LoadWebRTCVersionInRegister() {
   // Using volatile to instruct the compiler to not optimize `p` away even