diff --git a/src/client.rs b/src/client.rs
index 2fd6e1430..d893614aa 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -135,7 +135,7 @@ impl Client {
                             if ph.socket_addr.is_empty() {
                                 match ph.failure.enum_value_or_default() {
                                     punch_hole_response::Failure::ID_NOT_EXIST => {
-                                        bail!("ID not exist");
+                                        bail!("ID does not exist");
                                     }
                                     punch_hole_response::Failure::OFFLINE => {
                                         bail!("Remote desktop is offline");
diff --git a/src/ui/index.tis b/src/ui/index.tis
index 63e77798c..e8321c0e7 100644
--- a/src/ui/index.tis
+++ b/src/ui/index.tis
@@ -115,7 +115,7 @@ function createNewConnect(id, type) {
     app.remote_id.value = formatId(id);
     if (!id) return;
     if (id == handler.get_id()) {
-        handler.msgbox("custom-error", "Error", "Sorry, it is yourself");
+        handler.msgbox("custom-error", "Error", "You cannot connect to your own computer");
         return;
     }
     handler.set_remote_id(id);
@@ -421,7 +421,7 @@ class UpgradeMe: Reactor.Component {
         var update_or_download = is_osx ? "download" : "update";
         return <div .install-me>
             <div>{handler.get_app_name()} Status</div>
-            <div>Your installation is lower version.</div>
+            <div>An update is available for RustDesk.</div>
             <div #install-me .link style="padding-top: 1em">Click to upgrade</div>
         </div>;
     }
@@ -444,7 +444,7 @@ class UpdateMe: Reactor.Component {
 
     event click $(#install-me) {
         if (is_osx) {
-            handler.open_url("http://rustdesk.com");
+            handler.open_url("https://rustdesk.com");
             return;
         }
         var url = software_update_url + '.' + handler.get_software_ext();
diff --git a/src/ui/port_forward.tis b/src/ui/port_forward.tis
index 986d22de1..d30367710 100644
--- a/src/ui/port_forward.tis
+++ b/src/ui/port_forward.tis
@@ -22,7 +22,7 @@ class PortForward: Reactor.Component {
       return <div #file-transfer><section>
         {pfs.length ? <div style="background: green; color: white; text-align: center; padding: 0.5em;">
           <span style="font-size: 1.2em">Listening ...</span><br/>
-          <span style="font-size: 0.8em; color: #ddd">Don't close this window while your are using tunnel</span>
+          <span style="font-size: 0.8em; color: #ddd">Don't close this window while you are using the tunnel</span>
         </div> : ""}
         <table #port-forward>    
         <thead>