diff --git a/CHANGES.md b/CHANGES.md
index 4fcd03dd..309554af 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -11,6 +11,10 @@
 
 ## develop
 
+- [CHANGE] シグナリング `connect` メッセージの `libwebrtc` に含まれるバージョン文字列を Android と揃える
+  - branch-heads を追加する
+  - () 内の libwebrtc バージョンについて最初の 1 文字を削る
+  - 送信される文字列は `Shiguredo-build M122 (M122.1.0 6b419a0)` から、`Shiguredo-build M122 (122.6261.1.0 6b419a0)` に変更される
 - [UPDATE] WebRTC m122.6261.1.0 に上げる
   - @miosakuma
 
diff --git a/Sora/PackageInfo.swift b/Sora/PackageInfo.swift
index c7e743f4..b9340f00 100644
--- a/Sora/PackageInfo.swift
+++ b/Sora/PackageInfo.swift
@@ -20,6 +20,9 @@ public enum WebRTCInfo {
     /// WebRTC フレームワークのソースコードのリビジョン
     public static let revision = "6b419a0536b1a0ccfff3682f997c6f19bcbd9bd8"
 
+    /// WebRTC の branch-heads
+    public static let branch = "6261"
+
     /// WebRTC フレームワークのソースコードのリビジョン (短縮版)
     public static var shortRevision: String {
         String(revision[revision.startIndex ..< revision.index(
diff --git a/Sora/PeerChannel.swift b/Sora/PeerChannel.swift
index f3044989..1dc471fc 100644
--- a/Sora/PeerChannel.swift
+++ b/Sora/PeerChannel.swift
@@ -307,7 +307,7 @@ class PeerChannel: NSObject, RTCPeerConnectionDelegate {
 
         let soraClient = "Sora iOS SDK \(SDKInfo.version)"
 
-        let webRTCVersion = "Shiguredo-build \(WebRTCInfo.version) (\(WebRTCInfo.version).\(WebRTCInfo.commitPosition).\(WebRTCInfo.maintenanceVersion) \(WebRTCInfo.shortRevision))"
+        let webRTCVersion = "Shiguredo-build \(WebRTCInfo.version) (\(WebRTCInfo.version.dropFirst()).\(WebRTCInfo.branch).\(WebRTCInfo.commitPosition).\(WebRTCInfo.maintenanceVersion) \(WebRTCInfo.shortRevision))"
 
         let simulcast = configuration.simulcastEnabled
         let connect = SignalingConnect(