diff --git a/appveyor.yml b/appveyor.yml
index 5a31aff..c068054 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -8,8 +8,9 @@ branches:
 init:
   - ps: |
       if ($env:APPVEYOR_REPO_TAG -eq "true") {
-        $requestedVersion = "$($env:APPVEYOR_REPO_TAG_NAME.TrimStart("v"))"
-        Update-AppveyorBuild -Version $requestedVersion
+        $Env:KBFRZ71_VERSION = "$($env:APPVEYOR_REPO_TAG_NAME.TrimStart("v"))"
+      } else {
+        $Env:KBFRZ71_VERSION = ""
       }
 
 before_build:
@@ -22,7 +23,7 @@ build_script:
       docker run `
         --rm `
         --mount "type=bind,source=C:\projects\optimized-azerty-win\bin,target=C:\sources" `
-        --env "KBFRZ71_VERSION=1.0.3.40" `
+        --env "KBFRZ71_VERSION=$Env:KBFRZ71_VERSION" `
         private/msklc:1.4 > build.log
   - ps: |
       $content = (Get-Content -Path ".\build.log" -Raw)