diff --git a/.drone.yml b/.drone.yml
index 1f4be63..21f04c9 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -7,13 +7,13 @@
 
     steps:
     - name: test
-      image: mcr.microsoft.com/dotnet/sdk:5.0
+      image: mcr.microsoft.com/dotnet/sdk:5.0.102-ca-patch-buster-slim
       commands:
         - dotnet build -c Release
         - dotnet test -c Release
 
     - name: deploy
-      image: mcr.microsoft.com/dotnet/sdk:5.0
+      image: mcr.microsoft.com/dotnet/sdk:5.0.102-ca-patch-buster-slim
       environment:
         API_KEY:
           from_secret: API_KEY