diff --git a/src/service/.gitlab-ci.yml b/src/service/.gitlab-ci.yml
index ff96d3b2144ad7c2ec433ce1c017274e1515ae50..74e56393e5892454542d932ac4eae5b9d092b5a1 100644
--- a/src/service/.gitlab-ci.yml
+++ b/src/service/.gitlab-ci.yml
@@ -154,7 +154,7 @@ unit_test service:
 
         # Mock QKD Nodes Deployment
     - echo "Starting stage: deploy_mock_nodes"
-    - |
+    - >
       for port in 11111 22222 33333; do
         if lsof -i:$port >/dev/null 2>&1; then
           echo "Freeing up port $port..."
@@ -162,7 +162,7 @@ unit_test service:
         fi
       done
     - MOCK_NODES_DIR="$PWD/src/tests/tools/mock_qkd_nodes"
-    - |
+    - >
       if [ -d "$MOCK_NODES_DIR" ]; then
         cd "$MOCK_NODES_DIR" || exit
         ./start.sh &
@@ -174,7 +174,7 @@ unit_test service:
     - echo "Waiting for mock nodes to be up..."
     - RETRY_COUNT=0
     - MAX_RETRIES=15
-    - |
+    - >
       while [ $RETRY_COUNT -lt $MAX_RETRIES ]; do
         if curl -s http://127.0.0.1:11111 > /dev/null && \
            curl -s http://127.0.0.1:22222 > /dev/null && \
@@ -187,7 +187,7 @@ unit_test service:
             sleep 5
         fi
       done
-    - |
+    - >
       if [ $RETRY_COUNT -ge $MAX_RETRIES ]; then
         echo "Error: Mock nodes failed to start after multiple attempts."
         exit 1