diff --git a/AutoTx/Resources/Install-NewestPackage.ps1 b/AutoTx/Resources/Install-NewestPackage.ps1
index 8946fb19071dd1d9cda81f5767f02ba7c61c5813..938062dd6006330c746454dc8e350f37f21c3ed9 100644
--- a/AutoTx/Resources/Install-NewestPackage.ps1
+++ b/AutoTx/Resources/Install-NewestPackage.ps1
@@ -1,5 +1,5 @@
 $PackageDir = Get-ChildItem -Directory -Name |
-    Where-Object {$_ -match 'build_*'} |
+    Where-Object {$_ -match 'build_[0-9]{4}-[0-9]{2}-[0-9]{2}_'} |
     Select-Object -Last 1
 
 $CurDir = Get-Location