diff --git a/.circleci/config.yml b/.circleci/config.yml
index ae893e7..fe3d37c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -13,7 +13,8 @@ jobs:
     steps:
       - checkout
       - run: git submodule update --init
-      - setup_remote_docker
+      - setup_remote_docker:
+          version: 18.09.3
       - run: ./tests/init.sh
       - run:
           command: ./tests/run.sh
diff --git a/tests/init.sh b/tests/init.sh
index 1ce0518..3604541 100755
--- a/tests/init.sh
+++ b/tests/init.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 docker build -t tss -f ./src/tss/Dockerfile-local ./src/tss
 ./demo/start-environment.sh
 echo "FOREIGN_PRIVATE_KEY=$FOREIGN_PRIVATE_KEY" > ./src/test-services/.keys.$TARGET_NETWORK