diff --git a/ElementX.xcodeproj/project.pbxproj b/ElementX.xcodeproj/project.pbxproj
index 4176ffc1f..03d6f351a 100644
--- a/ElementX.xcodeproj/project.pbxproj
+++ b/ElementX.xcodeproj/project.pbxproj
@@ -9363,7 +9363,7 @@
 			repositoryURL = "https://github.com/element-hq/element-call-swift";
 			requirement = {
 				kind = exactVersion;
-				version = "0.16.0-rc.3";
+				version = "0.16.0-rc.4";
 			};
 		};
 		821C67C9A7F8CC3FD41B28B4 /* XCRemoteSwiftPackageReference "emojibase-bindings" */ = {
diff --git a/ElementX.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/ElementX.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
index 3879da925..7aaabe289 100644
--- a/ElementX.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
+++ b/ElementX.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -59,8 +59,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/element-hq/element-call-swift",
       "state" : {
-        "revision" : "48523e02e3ea1e9d1b8c1ca8652c37ff64299187",
-        "version" : "0.16.0-rc.3"
+        "revision" : "3e2571a11f611761114038225ef368dd9ac83805",
+        "version" : "0.16.0-rc.4"
       }
     },
     {
diff --git a/ElementX/Sources/Screens/CallScreen/CallScreenModels.swift b/ElementX/Sources/Screens/CallScreen/CallScreenModels.swift
index 805cfce51..3cc9a9b5e 100644
--- a/ElementX/Sources/Screens/CallScreen/CallScreenModels.swift
+++ b/ElementX/Sources/Screens/CallScreen/CallScreenModels.swift
@@ -106,7 +106,7 @@ enum CallScreenJavaScriptMessageName: String, CaseIterable {
 
 struct DecodedWidgetMessage: Decodable {
     private static let decoder = JSONDecoder()
-    private static let joinAction = "io.element.join"
+    private static let contentLoadedAction = "content_loaded"
     private static let fromWidget = "fromWidget"
     
     let action: String?
@@ -119,7 +119,7 @@ struct DecodedWidgetMessage: Decodable {
         return try decoder.decode(DecodedWidgetMessage.self, from: data)
     }
     
-    var hasJoined: Bool {
-        action == Self.joinAction && api == Self.fromWidget
+    var hasLoaded: Bool {
+        action == Self.contentLoadedAction && api == Self.fromWidget
     }
 }
diff --git a/ElementX/Sources/Screens/CallScreen/CallScreenViewModel.swift b/ElementX/Sources/Screens/CallScreen/CallScreenViewModel.swift
index fd5923eae..aa4c85553 100644
--- a/ElementX/Sources/Screens/CallScreen/CallScreenViewModel.swift
+++ b/ElementX/Sources/Screens/CallScreen/CallScreenViewModel.swift
@@ -153,7 +153,7 @@ class CallScreenViewModel: CallScreenViewModelType, CallScreenViewModelProtocol
     private func handleWidgetAction(message: String) async {
         if timeoutTask != nil,
            let decodedMessage = try? DecodedWidgetMessage.decode(message: message),
-           decodedMessage.hasJoined {
+           decodedMessage.hasLoaded {
             // This means that the call room was joined succesfully, we can stop the timeout task
             timeoutTask = nil
         }
diff --git a/project.yml b/project.yml
index 352f36c91..deef14c8e 100644
--- a/project.yml
+++ b/project.yml
@@ -80,7 +80,7 @@ packages:
     # path: ../matrix-analytics-events
   EmbeddedElementCall:
     url: https://github.com/element-hq/element-call-swift
-    exactVersion: 0.16.0-rc.3
+    exactVersion: 0.16.0-rc.4
   Emojibase:
     url: https://github.com/matrix-org/emojibase-bindings
     minorVersion: 1.4.2