diff --git a/.drone.yml b/.drone.yml
index cd1c3b3..2b30223 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -11,6 +11,7 @@ services:
 
 steps:
   - name: lint and test
+    image: docker.io/library/elixir:1.18.3-otp-27
     commands:
       # Install hex package manager
       - mix local.hex --force