diff --git a/.drone.yml b/.drone.yml
index 85bfeb8..1d1fe2c 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -7,6 +7,7 @@ steps:
 - name: build
   image: alpine
   commands:
+  - apk add curl
   - curl -LJO https://dot.net/v1/dotnet-install.sh
   - ./dotnet-install.sh -c 5.0
   - apk add zip