diff --git a/.appveyor.yml b/.appveyor.yml
index df3a2dc3..6267b3c7 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -19,14 +19,14 @@ branches:
 
 install:
   - ps: |
-        $LDC_URL = "https://github.com/ldc-developers/ldc/releases/download/v1.25.1/ldc2-1.25.1-windows-x64.7z"
+        $LDC_URL = "https://github.com/ldc-developers/ldc/releases/download/v1.27.1/ldc2-1.27.1-windows-x64.7z"
         $LDC_NME = "C:\ldc.7z";
         $LAZ_URL = "https://gitlab.com/basile.b/laz-bin-cache.git"
         $LAZ_NME = "laz-bin-cache\lazarus-2.0.12-fpc-3.2.0-win64.exe"
 
         (new-object net.webclient).DownloadFile($LDC_URL, $LDC_NME)
         7z x $LDC_NME -o"C:\" -y -r
-        Rename-Item "C:\ldc2-1.25.1-windows-x64" "C:\ldc"
+        Rename-Item "C:\ldc2-1.27.1-windows-x64" "C:\ldc"
 
         git clone $LAZ_URL
         Start-Process -FilePath $LAZ_NME -Wait -ArgumentList "/SILENT", "/SUPPRESSMSGBOXES", "/DIR=C:\lazarus"
@@ -49,6 +49,7 @@ build_script:
 
         echo "building d-scanner..."
         git clone https://github.com/dlang-community/d-scanner.git
+        git checkout v0.11.1
         cd d-scanner
         C:\ldc\bin\dub.exe build --build=release --compiler=ldc2.exe
         cd ..