diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index dd88d8d7d7bf..23c463fb947a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -36,6 +36,7 @@ jobs:
         run: |
           Invoke-WebRequest -Uri https://github.com/Ijwu/Enemizer/releases/download/${Env:ENEMIZER_VERSION}/win-x64.zip -OutFile enemizer.zip
           Expand-Archive -Path enemizer.zip -DestinationPath EnemizerCLI -Force
+          choco install innosetup --version=6.2.2 --allow-downgrade
       - name: Build
         run: |
           python -m pip install --upgrade pip