diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e427343c36323d1fd4f966a225975d2a60e7d773..776c643f8602bfa50f2e82fc0f2082f77a6f46df 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -72,8 +72,8 @@ deploy-prod-release-prod-cscs:
     OC_PROJECT: jupyterhub
     LAB_KERNEL_ROOT: /srv/jupyterlab_kernels/prod
     INSTALLATION_ROOT: /srv/main-spack-instance-2305
-    SPACK_ENV: ebrains-23-06
-    RELEASE_NAME: EBRAINS-23.06
+    SPACK_ENV: ebrains-23-09
+    RELEASE_NAME: EBRAINS-23.09
   resource_group: shared-NFS-mount-prod-cscs
   rules:
     - if: $CI_COMMIT_BRANCH =~ /^ebrains/
@@ -90,8 +90,8 @@ deploy-prod-release-prod-jsc:
     OC_PROJECT: jupyterhub
     LAB_KERNEL_ROOT: /srv/jupyterlab_kernels/prod
     INSTALLATION_ROOT: /srv/main-spack-instance-2305
-    SPACK_ENV: ebrains-23-06
-    RELEASE_NAME: EBRAINS-23.06
+    SPACK_ENV: ebrains-23-09
+    RELEASE_NAME: EBRAINS-23.09
   resource_group: shared-NFS-mount-prod-jsc
   rules:
     - if: $CI_COMMIT_BRANCH =~ /^ebrains/