diff --git a/.drone.yml b/.drone.yml
index eb0dd88..ed91eed 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -37,7 +37,7 @@ steps:
       restore: true
 
   - name: test
-    image: 'elixir:1.14.5'
+    image: 'elixir:1.14.5-slim'
     environment:
       MIX_ENV: test
       POSTGRES_HOST: db
@@ -48,7 +48,7 @@ steps:
       - make test
 
   - name: lint
-    image: 'elixir:1.14.5'
+    image: 'elixir:1.14.5-slim'
     commands:
       - mix do local.rebar --force, local.hex --force, deps.get, deps.compile
       - make static_code_analysis
diff --git a/docker-compose.yml b/docker-compose.yml
index db136b0..185b77d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,6 +1,4 @@
 ---
-version: '3.7'
-
 services:
   db:
     image: 'postgres:15.3-alpine'
@@ -15,7 +13,7 @@ services:
       - 'db_data:/var/lib/postgresql/data'
     restart: unless-stopped
   app:
-    image: 'elixir:1.14.5'
+    image: 'elixir:1.14.5-slim'
     hostname: app
     depends_on:
       - db