diff --git a/.drone.yml b/.drone.yml
index 4c632a5..e6111c2 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -6,6 +6,7 @@ steps:
 - name: build
   image: gcc
   commands:
+  apt install -y cmake 
   - mkdir build
   - cd build
   - cmake ..