diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1b7e0ba..1aa953a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -76,6 +76,7 @@ jobs:
         run: |
           sudo apt-get update -qq
           sudo apt-get install -yqq binutils-mingw-w64-x86-64 g++-mingw-w64-x86-64 mingw-w64 wine-stable
+          sudo apt remove --purge --auto-remove mono-runtime    # Deal with "File does not contain a valid CIL image" error. See: https://github.com/orgs/community/discussions/64826
 
       - name: Build win64 cross-compiled plugins
         env: