diff --git a/jsonrpc.go b/jsonrpc.go
index 14e3bcfa..6aa72263 100644
--- a/jsonrpc.go
+++ b/jsonrpc.go
@@ -179,6 +179,9 @@ func onRPCMessage(message webrtc.DataChannelMessage, session *Session) {
 		return
 	}
 
+	// Update last active timestamp for any valid RPC activity
+	sessionManager.UpdateLastActive(session.ID)
+
 	var request JSONRPCRequest
 	err := json.Unmarshal(message.Data, &request)
 	if err != nil {