diff --git a/.drone.yml b/.drone.yml
index af82c08..e7e0b84 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -9,6 +9,8 @@ steps:
       - ls
       - /opt/unity/editors/2021.3.19f1/Editor/Unity -batchmode -nographics -projectPath . -executeMethod GitTools.Solution.Sync -quit
       - cat Assembly-CSharp.csproj
+      - sed -i 's/4.0/6.0/g' Assembly-CSharp.csproj
+      - cat Assembly-CSharp.csproj
   - name: code-analysis
     pull: if-not-exists
     image: mcr.microsoft.com/dotnet/framework/runtime:4.8.1