diff --git a/Dockerfile b/Dockerfile
index 6519b8c..0f911ed 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,11 @@
-FROM composer:latest
+FROM php:7-alpine
 
 LABEL maintainer "nicolas.potier@acseo.fr"
 
-RUN composer global require --dev deployer/deployer:6.0.5
+RUN curl -LO https://deployer.org/deployer.phar \
+    && mv deployer.phar /usr/local/bin/dep \
+    && chmod +x /usr/local/bin/dep
+
 RUN apk --no-cache add openssh-client rsync
 
 ENTRYPOINT ["/bin/sh", "-c"]