diff --git a/Dockerfile b/Dockerfile
index e5d04c7dadac08475257059ed2a80683fa401d8b..67ade91c5c1b61ba9be2c8eb550dbdedb747902e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,7 +24,8 @@ RUN \
 
 # install packages
  apt-get install -y \
-	curl && \
+	curl \
+	tzdata && \
 
 # generate locale
  locale-gen en_US.UTF-8 && \