diff --git a/.drone.yml b/.drone.yml
index b2c1f8e..b8ce372 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -11,7 +11,7 @@ steps:
 
   - name: code-analysis
     pull: if-not-exists
-    image: mcr.microsoft.com/dotnet/sdk:6.0
+    image: mcr.microsoft.com/dotnet/sdk:4.7.1
     commands:
       - apt-get update && apt-get install -y unzip
       - export PATH="$PATH:/root/.dotnet/tools"