diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6007ee39900921dd7448ca11b755730cc79bd4f9..3177af36024899b3edeffd3bc83c36bec37028dd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -32,6 +32,7 @@ unit-test-job:   # This job runs in the test stage.
     - echo "Running unit tests... "
     - uname -a
     - which python
+    - which sh
     - apt update && apt upgrade
     - apt install python python-pip
     - pip install -r requirements.txt