diff --git a/.travis.yml.mustache b/.travis.yml.mustache
index 7e8467c..e6f4df0 100644
--- a/.travis.yml.mustache
+++ b/.travis.yml.mustache
@@ -35,13 +35,13 @@ language: shell
       set -ex
       sudo chown -R coq:coq /home/coq/${PACKAGE}
       opam install ${PACKAGE} -v -y -j ${NJOBS}
-{{# ci_test_dependants }}
+{{# ci_test_dependants.enabled }}
       PINS=$(opam list -s --pinned --columns=package | xargs | tr ' ' ,)
-      PACKAGES=`opam list -s --depends-on {{ opam_name }}{{^ opam_name }}coq-{{ shortname }}{{/ opam_name }} --coinstallable-with $PINS`
+      PACKAGES="{{# ci_test_dependants.packages }}{{.}} {{/ ci_test_dependants.packages }}"
       if [ -n "$PACKAGES" ]
       then opam install -t $PACKAGES
       fi
-{{/ ci_test_dependants }}
+{{/ ci_test_dependants.enabled }}
       "
   - docker stop COQ  # optional
   - echo -en 'travis_fold:end:script\\r'
diff --git a/config.yml.mustache b/config.yml.mustache
index 062df97..ce6ba2f 100644
--- a/config.yml.mustache
+++ b/config.yml.mustache
@@ -41,18 +41,18 @@ jobs:
         name: Build, test, and install package
         command: opam install -t .
 {{& circleci_after_script }}
-{{# ci_test_dependants }}
+{{# ci_test_dependants.enabled }}
     - run:
         name: Test dependants
         command: |
           PINS=$(opam list -s --pinned --columns=package | xargs | tr ' ' ,)
-          PACKAGES=`opam list -s --depends-on {{ opam_name }}{{^ opam_name }}coq-{{ shortname }}{{/ opam_name }} --coinstallable-with $PINS`
+          PACKAGES="{{# ci_test_dependants.packages }}{{.}} {{/ ci_test_dependants.packages }}"
           for PACKAGE in $PACKAGES
           do DEPS_FAILED=false
              opam install --deps-only $PACKAGE || DEPS_FAILED=true
              [ $DEPS_FAILED == true ] || opam install -t $PACKAGE
           done
-{{/ ci_test_dependants }}
+{{/ ci_test_dependants.enabled }}
     - run:
         name: Uninstall package
         command: opam uninstall .
diff --git a/docker-action.yml.mustache b/docker-action.yml.mustache
index a113724..c9cc594 100644
--- a/docker-action.yml.mustache
+++ b/docker-action.yml.mustache
@@ -47,18 +47,18 @@ jobs:
               opam config list; opam repo list; opam list
             endGroup
 <%/ ci_extra_dev %>
-<%# ci_test_dependants %>
+<%# ci_test_dependants.enabled %>
           after_script: |
             startGroup "Test dependants"
               PINS=$(opam list -s --pinned --columns=package | xargs | tr ' ' ,)
-              PACKAGES=`opam list -s --depends-on <% opam_name %><%^ opam_name %>coq-<% shortname %><%/ opam_name %> --coinstallable-with $PINS`
+              PACKAGES="<%# ci_test_dependants.packages %><%.%> <%/ ci_test_dependants.packages %>"
               for PACKAGE in $PACKAGES
               do DEPS_FAILED=false
-                 opam install -y --deps-only $PACKAGE || DEPS_FAILED=true
+                 opam install -y -t --deps-only $PACKAGE || DEPS_FAILED=true
                  [ $DEPS_FAILED == true ] || opam install -t $PACKAGE
               done
             endGroup
-<%/ ci_test_dependants %>
+<%/ ci_test_dependants.enabled %>
 <%& action_appendix %>
 
 # See also:
diff --git a/ref.yml b/ref.yml
index e8bb35a..580917e 100644
--- a/ref.yml
+++ b/ref.yml
@@ -75,11 +75,15 @@ fields:
         - README.md
         - .travis.yml
   - ci_test_dependants:
-      type: bool
       used:
         - config.yml
         - .travis.yml
         - docker-action.yml
+      item_fields:
+        - name: enabled
+          type: bool
+        - name: packages
+          type: list
   - ci_extra_dev:
       type: bool
       description: >