diff --git a/.circleci/config.yml b/.circleci/config.yml
index bc6df2b..f3aeb19 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -8,7 +8,7 @@ jobs:
           path: ~/repo
       - run:
           name: Build Postal Docker Container
-          command: docker build -t catdeployed/postal:latest -t catdeployed/postal:alpine .
+          command: docker build --network=host -t catdeployed/postal:latest -t catdeployed/postal:alpine .
       - run:
           name: Export Container
           command: mkdir workspace && cd workspace && docker save --output postal_alpine.tar catdeployed/postal:alpine
@@ -24,7 +24,7 @@ jobs:
           path: ~/repo
       - run:
           name: Build Postal Docker Container
-          command: docker build -t catdeployed/postal:ubuntu .
+          command: docker build --network=host -t catdeployed/postal:ubuntu .
       - run:
           name: Export Container
           command: mkdir workspace && cd workspace && docker save --output postal_ubuntu.tar catdeployed/postal:ubuntu
diff --git a/ubuntu/Dockerfile b/ubuntu/Dockerfile
index d4a3911..f833020 100644
--- a/ubuntu/Dockerfile
+++ b/ubuntu/Dockerfile
@@ -7,7 +7,7 @@ RUN curl -sL https://deb.nodesource.com/setup_10.x | bash - \
         && apt-get install -y nodejs
 
 RUN apt-get -y update \
-	&& apt-get -y install --no-install-recommends nodejs mysql-client git-core libcap2-bin \
+	&& apt-get -y install --no-install-recommends nodejs mariadb-client git-core libcap2-bin \
         && git clone https://github.com/atech/postal.git /opt/postal \
 	&& rm -rf /var/lib/apt/lists/* \
 	&& gem install bundler \