diff --git a/mx-tester.yml b/mx-tester.yml
index b86daa3..0c1f8a1 100644
--- a/mx-tester.yml
+++ b/mx-tester.yml
@@ -6,17 +6,26 @@ name: mjolnir
 
 up:
   before:
-    - docker run --rm --network $MX_TEST_NETWORK_NAME --name mjolnir-test-postgres --domainname mjolnir-test-postgres -e POSTGRES_PASSWORD=mjolnir-test -e POSTGRES_USER=mjolnir-tester -e POSTGRES_DB=mjolnir-test-db -d -p 127.0.0.1:8083:5432 postgres
+    - docker run --rm --network $MX_TEST_NETWORK_NAME --name
+      mjolnir-test-postgres --domainname mjolnir-test-postgres -e
+      POSTGRES_PASSWORD=mjolnir-test -e POSTGRES_USER=mjolnir-tester -e
+      POSTGRES_DB=mjolnir-test-db -d -p 127.0.0.1:8083:5432 postgres
     # Wait until postgresql is ready
-    - until psql postgres://mjolnir-tester:mjolnir-test@127.0.0.1:8083/mjolnir-test-db -c ""; do echo "Waiting for psql..."; sleep 1s; done
+    - until psql
+      postgres://mjolnir-tester:mjolnir-test@127.0.0.1:8083/mjolnir-test-db -c
+      ""; do echo "Waiting for psql..."; sleep 1s; done
     # Launch the reverse proxy, listening for connections *only* on the local host.
-    - docker run --rm --network host --name mjolnir-test-reverse-proxy -p 127.0.0.1:8081:80 -v $MX_TEST_CWD/test/nginx.conf:/etc/nginx/nginx.conf:ro -d nginx
+    - docker run --rm --network host --name mjolnir-test-reverse-proxy -p
+      127.0.0.1:8081:80 -v $MX_TEST_CWD/test/nginx.conf:/etc/nginx/nginx.conf:ro
+      -d nginx
     - corepack yarn install
-    - corepack npx ts-node src/appservice/cli.ts -r -u "http://host.docker.internal:9000"
+    - corepack npx ts-node src/appservice/cli.ts -r -u
+      "http://host.docker.internal:9000"
     - cp draupnir-registration.yaml $MX_TEST_SYNAPSE_DIR/data/
   after:
     # Wait until Synapse is ready
-    - until curl localhost:9999 --stderr /dev/null > /dev/null; do echo "Waiting for Synapse..."; sleep 1s; done
+    - until curl localhost:9999 --stderr /dev/null > /dev/null; do echo "Waiting
+      for Synapse..."; sleep 1s; done
     - echo "Synapse is ready"
 
 run: