diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c41d9c5..97c3def 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,6 +10,7 @@ variables:
   PXIII_BEC_BRANCH: "main"
   DEBYE_BEC_BRANCH: "main"
   TOMCAT_BEC_BRANCH: "main"
+  XTREME_BEC_BRANCH: "main"
 
 workflow:
   rules:
@@ -178,13 +179,15 @@ trigger:
   parallel:
     matrix:
       - CHILD_PROJECT: csaxs_bec
-        CHILD_PIPELINE_BRANCH: $CSAXS_BEC_BRANCH        
+        CHILD_PIPELINE_BRANCH: $CSAXS_BEC_BRANCH     
+      - CHILD_PROJECT: debye_bec
+        CHILD_PIPELINE_BRANCH: $DEBYE_BEC_BRANCH           
       - CHILD_PROJECT: pxiii_bec
         CHILD_PIPELINE_BRANCH: $PXIII_BEC_BRANCH
-      - CHILD_PROJECT: debye_bec
-        CHILD_PIPELINE_BRANCH: $DEBYE_BEC_BRANCH
       - CHILD_PROJECT: tomcat_bec
-        CHILD_PIPELINE_BRANCH: $TOMCAT_BEC_BRANCH        
+        CHILD_PIPELINE_BRANCH: $TOMCAT_BEC_BRANCH
+      - CHILD_PROJECT: xtreme_bec
+        CHILD_PIPELINE_BRANCH: $XTREME_BEC_BRANCH             
 
   needs: []
   trigger: