diff --git a/alpine/Dockerfile b/alpine/Dockerfile
index 79c83cb..9989f6a 100644
--- a/alpine/Dockerfile
+++ b/alpine/Dockerfile
@@ -4,7 +4,6 @@ RUN apk --no-cache add nodejs mariadb-client git bash python2 libcap py-setuptoo
 	&& pip install j2cli \
         && git clone https://github.com/atech/postal.git /opt/postal \
 	&& rm -rf /var/lib/apt/lists/* \
-	&& gem install tzinfo-data \
 	&& gem install bundler \
 	&& gem install procodile \
 	&& gem install tzinfo-data \
diff --git a/ubuntu/Dockerfile b/ubuntu/Dockerfile
index 57550f4..6433d33 100644
--- a/ubuntu/Dockerfile
+++ b/ubuntu/Dockerfile
@@ -4,6 +4,7 @@ RUN apk --no-cache add nodejs mysql-client git bash python libcap py-setuptools
 	&& pip install j2cli \
         && git clone https://github.com/atech/postal.git /opt/postal \
 	&& rm -rf /var/lib/apt/lists/* \
+	&& gem install tzinfo-data \
 	&& gem install bundler \
 	&& gem install procodile \
 	&& addgroup -S postal \