diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ed589c40cf103bf828710335778aae9fae68161d..63a04ca197798edd998bd642fc5d22b514c20354 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -23,9 +23,14 @@ create_tarball:
 
 trigger-downstream:
   stage: staging
+  parallel:
+    matrix:
+      - PSMPI_EB_FILE:
+        - psmpi-5.9.2-1-GCC-11.3.0.eb
+        - psmpi-5.9.2-1-GCC-11.3.0-mt.eb
   variables:
     BUILD_INVERSE_DEPENDENCIES: 'FALSE'
-    EB_FILE_CURRENT: "psmpi-5.9.2-1-GCC-11.3.0.eb"
+    EB_FILE_CURRENT: '${PSMPI_EB_FILE}'
     SRC: '${CI_PIPELINE_ID}.tar.gz'
   trigger:
     project: deep-sea/wp3/software/easybuild-repository-deep-sea