diff --git a/Dockerfile b/Dockerfile
index 4e435af7..58ed68e8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,6 +23,7 @@ RUN \
       libssl-dev \
       libtool \
       locales \
+      ntp \
       pkg-config \
       ntp \
       pkg-config \