diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2652b90db7521c0f3513b58f6d09c3ec948e9d65..ac6975703b840e65dfa9c941d8479871d51bbf3f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -98,20 +98,12 @@ spack:setup:
 
     - 'echo "config: { install_tree: { root: /stack/spack/opt/spack } }" > /stack/spack/etc/config.yaml'
 
-    - echo $SPACK_SYSTEM_CONFIG_PATH
-
-    - spack/bin/spack config blame mirrors
-    - spack/bin/spack config blame config
-
     - |
       if [ ! -d /buildcache/build_cache ]; then
         spack/bin/spack gpg publish -d /buildcache
       fi
     - spack/bin/spack buildcache keys --install --trust
     - spack/bin/spack buildcache update-index /buildcache
-    - spack/bin/spack buildcache list --allarch
-
-
 
 
 spack:install_compilers:
@@ -164,6 +156,7 @@ spack:concretize:
     - .spack_cache
     - .parallel_job
   script:
+    - spack/bin/spack config blame definitions
     - spack/bin/spack -e . concretize
   needs:
     - job: spack:install_compilers
diff --git a/config.json b/config.json
index f18db4e86dc5cb8c7b8539e705462d03058c909a..402235a6191b17c59b8ad6943424f10f02f43327 100644
--- a/config.json
+++ b/config.json
@@ -1,6 +1,6 @@
 {
     "spack": {
-        "version": "v0.21.1",
+        "version": "develop",
         "repos": {
             "scitas-externals": {
                 "url": "https://gitlab.epfl.ch/SCITAS/software-stack/spack-repo-externals.git",