diff --git a/.drone.yml b/.drone.yml
index 6370f0e..e96b6e9 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -7,6 +7,7 @@ workspace:
 
 steps:
 - name: library
+  image: mcr.microsoft.com/dotnet/core/sdk:3.1
   commands:
     - git clone git@gitea.moonside.games:MoonsideGames/physfslibs.git
     - mv /build/physfslibs/lib64/libphysfs.3.0.2 /build/physfslibs/lib64/libphysfs.so