diff --git a/ShareX.UploadersLib/BaseUploaders/Uploader.cs b/ShareX.UploadersLib/BaseUploaders/Uploader.cs
index 3768df445..ee531f0de 100644
--- a/ShareX.UploadersLib/BaseUploaders/Uploader.cs
+++ b/ShareX.UploadersLib/BaseUploaders/Uploader.cs
@@ -58,6 +58,18 @@ public static void UpdateServicePointManager()
             ServicePointManager.DefaultConnectionLimit = 25;
             ServicePointManager.Expect100Continue = false;
             ServicePointManager.UseNagleAlgorithm = false;
+
+            if (Helpers.IsWindows7())
+            {
+                try
+                {
+                    ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
+                }
+                catch (NotSupportedException)
+                {
+                    DebugHelper.WriteLine("Unable to configure TLS 1.2 as the default security protocol.");
+                }
+            }
         }
 
         protected void OnProgressChanged(ProgressManager progress)