diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9da02a2..28bc75f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,6 +16,23 @@ before_script:
   - gcloud auth list
   - gcloud --version
 
+# Run tests
+test_build:
+  stage: build
+  image: blockstream/satapi-builder@sha256:a3a137b80a08325bdd50a7c59ae0429b933e7a36db0d74f6ae34af067dfdee2d
+  only:
+    - branches@satellite/ionosphere
+  except:
+    - master@satellite/ionosphere
+  before_script:
+    - export CHARGE_ROOT=$CHARGE_ROOT_CI
+    - export REDIS_URI=$REDIS_URI_CI
+  script:
+    - bundle exec rake db:create && bundle exec rake db:schema:load && bundle exec rake db:migrate
+    - bundle exec ruby tests/tests.rb || { echo "Tests failed.."; exit 1; }
+    - echo "Tests passed!"
+    - sleep 5000
+
 # Run tests and build docker images
 build:
   stage: build