diff --git a/docker_templates/templates/snippet/setup_tzdata.Dockerfile.em b/docker_templates/templates/snippet/setup_tzdata.Dockerfile.em
index 69fff5c..501ed5c 100644
--- a/docker_templates/templates/snippet/setup_tzdata.Dockerfile.em
+++ b/docker_templates/templates/snippet/setup_tzdata.Dockerfile.em
@@ -1,29 +1,7 @@
-@{
-releases_with_configured_tzdata = [
-    'artful',
-    'lucid',
-    'maverick',
-    'nutty',
-    'oneiric',
-    'precise',
-    'quantal',
-    'raring',
-    'saucy',
-    'trusty',
-    'utopic',
-    'vivid',
-    'wily',
-    'xenial',
-    'yakkety',
-    'zesty',
-]
-}@
-@[if os_name == 'ubuntu' and os_code_name not in releases_with_configured_tzdata]@
+@[if os_name == 'ubuntu']@
 
 # setup timezone
-RUN echo 'Etc/UTC' > /etc/timezone && \
-    ln -s /usr/share/zoneinfo/Etc/UTC /etc/localtime && \
-    apt-get update && \
-    apt-get install -q -y --no-install-recommends tzdata && \
+RUN apt-get update && \
+    DEBIAN_FRONTEND=noninteractive apt-get install -q -y --no-install-recommends --no-upgrade tzdata && \
     rm -rf /var/lib/apt/lists/*
 @[end if]@