diff --git a/.drone.yml b/.drone.yml
index 58b83a9..0d76b2f 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -12,6 +12,6 @@ steps:
   image: python:3.7-slim-buster
   commands:
   - apt update
-  - apt install -y pylint libcurl4-openssl-dev libssl-dev
+  - apt install -y pylint libcurl4-openssl-dev libssl-dev python-dev
   - pip3 install -r requirements.txt 
   - pylint *.py