diff --git a/Cargo.lock b/Cargo.lock
index 8d99878a7..25966959a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -9708,7 +9708,7 @@ dependencies = [
 [[package]]
 name = "webrtc-sctp"
 version = "0.12.0"
-source = "git+https://github.com/rustdesk-org/webrtc?rev=825a0a4862818f74406d8e1cc25be72259228235#825a0a4862818f74406d8e1cc25be72259228235"
+source = "git+https://github.com/rustdesk-org/webrtc?rev=cc6633bc240936b4973a3a30b12dad02d9a57f3f#cc6633bc240936b4973a3a30b12dad02d9a57f3f"
 dependencies = [
  "arc-swap",
  "async-trait",
@@ -9748,7 +9748,7 @@ dependencies = [
 [[package]]
 name = "webrtc-util"
 version = "0.11.0"
-source = "git+https://github.com/rustdesk-org/webrtc?rev=825a0a4862818f74406d8e1cc25be72259228235#825a0a4862818f74406d8e1cc25be72259228235"
+source = "git+https://github.com/rustdesk-org/webrtc?rev=cc6633bc240936b4973a3a30b12dad02d9a57f3f#cc6633bc240936b4973a3a30b12dad02d9a57f3f"
 dependencies = [
  "async-trait",
  "bitflags 1.3.2",
diff --git a/Cargo.toml b/Cargo.toml
index 4fe1ab013..be691f305 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -222,9 +222,12 @@ libxdo-sys = { path = "libs/libxdo-sys-stub" }
 # and fast retransmit cannot cover a request/response exchange; INITIAL_MTU 1228 also fragments on
 # IPv6; and its AIMD pins a lossy long-haul link to MSS/(RTT*sqrt(p)), so a switch sends without
 # a congestion window, as KCP does - on by default, `allow-webrtc-congestion-control` opts back in.
+# Sending that way, a reordering window keeps a chunk that is merely late from being resent on a
+# path that jitters, every DATA chunk asks for its SACK at once so a lost tail is back within an
+# RTT at KCP's RTO floors, and bundles of small chunks stay within the MTU.
 # Pinned by rev, not branch: a fork branch can be rewritten out from under the lockfile.
-webrtc-util = { git = "https://github.com/rustdesk-org/webrtc", rev = "825a0a4862818f74406d8e1cc25be72259228235" }
-webrtc-sctp = { git = "https://github.com/rustdesk-org/webrtc", rev = "825a0a4862818f74406d8e1cc25be72259228235" }
+webrtc-util = { git = "https://github.com/rustdesk-org/webrtc", rev = "cc6633bc240936b4973a3a30b12dad02d9a57f3f" }
+webrtc-sctp = { git = "https://github.com/rustdesk-org/webrtc", rev = "cc6633bc240936b4973a3a30b12dad02d9a57f3f" }
 
 [package.metadata.winres]
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