diff --git a/Dockerfile b/Dockerfile
index 7404382..c1acb24 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 FROM debian:stretch-slim
 
 RUN apt-get update && apt-get install --no-install-recommends -y \
+    curl \
     bash \
     bind9 \
     wget \