diff --git a/.circleci/config.yml b/.circleci/config.yml
index 4e2020079..23b33ea27 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -3,54 +3,83 @@ jobs:
   build:
     working_directory: ~/phovea
     docker:
-      - image: caleydo/phovea_circleci_python:v2.0
+      - image: caleydo/phovea_circleci_python:v3.0
     steps:
       - checkout
       - run:
+          name: Show Node.js and npm version
+          command: |
+            node -v
+            npm -v
+      - run:
+          name: Show Python and pip version
+          command: |
+            python --version
+            pip --version
+      - run:
+          name: Install Docker packages from docker_packages.txt
           command: |
             (!(test -f docker_packages.txt) || (cat docker_packages.txt | xargs sudo apt-get install -y))
       - restore_cache:
-          key: deps4-{{ checksum "package.json" }}
+          key: deps4-{{ .Branch }}-{{ checksum "package.json" }}
       - run:
-          name: install-npm-wee
+          name: Install npm dependencies
           command: npm install
-      - run: #remove all resolved github dependencies
-          name: delete-vcs-dependencies
+      - run:
+          name: Remove npm dependencies installed from git repositories (avoid caching of old commits)
           command: |
             (grep -l '._resolved.: .\(git[^:]*\|bitbucket\):' ./node_modules/*/package.json || true) | xargs -r dirname | xargs -r rm -rf
       - save_cache:
-          key: deps4-{{ checksum "package.json" }}
+          key: deps4-{{ .Branch }}-{{ checksum "package.json" }}
           paths:
           - ./node_modules
-      - run: #install all dependencies
-          name: install-npm-wee2
+      - run:
+          name: Install npm dependencies from git repositories (always get latest commit)
           command: npm install
+      - run:
+          name: Show installed npm dependencies
+          command: npm list --depth=1 || true
       - restore_cache:
-          key: deps1-{{ checksum "requirements.txt" }}-{{ checksum "requirements_dev.txt" }}
+          key: deps1-{{ .Branch }}-{{ checksum "requirements.txt" }}-{{ checksum "requirements_dev.txt" }}
       - run:
-          name: install-pip-wee
+          name: Install pip requirements
           command: |
             virtualenv ~/venv
             . ~/venv/bin/activate
             pip install -r requirements_dev.txt
             pip install -r requirements.txt
       - save_cache:
-          key: deps1-{{ checksum "requirements.txt" }}-{{ checksum "requirements_dev.txt" }}
+          key: deps1-{{ .Branch }}-{{ checksum "requirements.txt" }}-{{ checksum "requirements_dev.txt" }}
           paths:
           - ~/venv
-      - run: #force update of VCS dependencies?
-          name: update-pip-vcs-dependencies
+      - run:
+          name: Force an update of pip dependencies from git repositories # not sure if this is working ?
           command: |
             . ~/venv/bin/activate
             pip install --upgrade --upgrade-strategy=only-if-needed -r requirements.txt
       - run:
-          name: build
+          name: Show installed pip packages
+          command: pip list || true
+      - run:
+          name: Build
           command: |
             . ~/venv/bin/activate
-            npm run build
-
+            npm run dist
+      - store_artifacts:
+          path: dist
+          prefix: dist
 workflows:
   version: 2
+#  build-nightly:
+#    triggers:
+#      - schedule:
+#          cron: "15 1 * * 1-5" # "At 01:15 on every day-of-week from Monday through Friday.”, see: https://crontab.guru/#15_1_*_*_1-5
+#          filters:
+#            branches:
+#              only:
+#                - develop
+#    jobs:
+#      - build
   build-branch:
     jobs:
       - build:
diff --git a/package.json b/package.json
index 66328acf4..4ad38e648 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
     "@types/select2": "4.0.41",
     "d3": "3.5.17",
     "lineupjs": "github:lineupjs/lineupjs#develop",
-    "phovea_clue": "^2.2.0",
+    "phovea_clue": "github:phovea/phovea_clue#develop",
     "select2": "4.0.4",
     "select2-bootstrap-theme": "0.1.0-beta.9",
     "@types/jquery": "2.0.33",