diff --git a/Dockerfile b/Dockerfile
index 33a1a9d..21d3920 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,6 +3,8 @@ ARG GEM_VERSION=
 
 FROM ruby:${RUBY_VERSION}-slim
 
+RUN apt update && apt install -y curl
+
 RUN gem install --no-doc --version=${GEM_VERSION} prometheus_exporter
 
 EXPOSE 9394