diff --git a/scripts/upload-release-assets.ps1 b/scripts/upload-release-assets.ps1
index 897ed1a..c3f2595 100644
--- a/scripts/upload-release-assets.ps1
+++ b/scripts/upload-release-assets.ps1
@@ -30,6 +30,10 @@ param(
 
 $ErrorActionPreference = 'Stop'
 
+# Windows PowerShell 5.1 can default to older TLS settings and fail against
+# modern HTTPS endpoints before curl.exe gets a chance to upload assets.
+[Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
+
 $repoOwner = 'AnRil'
 $repoName  = 'laude'
 $giteaHost = 'git.xn--90adajar8af4h.xn--p1ai'