diff --git a/Dockerfile b/Dockerfile
index 5b736105b1633d511dda401af3c4d9a3a96b57a9..6a8d2307c3ba326d47c1b394febe1821ca49b106 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,3 @@
 FROM redmine:5.1.3
 
-RUN	apt update && apt install -y ruby-dev
+RUN	apt update && apt install -y build-essential ruby-dev