diff --git a/.github/workflows/codeball.yml b/.github/workflows/codeball.yml
deleted file mode 100644
index 6f483df1..00000000
--- a/.github/workflows/codeball.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-name: Codeball
-on: [pull_request]
-
-jobs:
-  codeball_job:
-    if: github.event.pull_request.head.repo.full_name == github.event.pull_request.base.repo.full_name
-    runs-on: ubuntu-latest
-    name: Codeball
-    steps:
-      # Run Codeball on all new Pull Requests 🚀
-      # For customizations and more documentation, see https://github.com/sturdy-dev/codeball-action
-      - name: Codeball
-        uses: sturdy-dev/codeball-action@v2
-        with:
-          approvePullRequests: "true"
-          labelPullRequestsWhenApproved: "true"
-          labelPullRequestsWhenReviewNeeded: "false"
-          failJobsWhenReviewNeeded: "false"
diff --git a/rebar.config b/rebar.config
index abb132a0..a7104ab6 100644
--- a/rebar.config
+++ b/rebar.config
@@ -37,10 +37,10 @@
 
 
 %% Coveralls
-{plugins                , [{coveralls, {git, "https://github.com/qzhuyan/coveralls-erl", {branch, "qzhuyan"}}}]}.
-{cover_enabled          , true}.
+{project_plugins, [{coveralls, {git, "https://github.com/qzhuyan/coveralls-erl", {branch, "qzhuyan"}}}]}.
+{cover_enabled, true}.
 {cover_excl_mods, [qt, qt_ssl, rev, user_default]}.
-{cover_export_enabled   , true}.
-{coveralls_coverdata    , "_build/test/cover/*.coverdata"}. % or a string with wildcards or a list of files
-{coveralls_service_name , "github"}.
+{cover_export_enabled, true}.
+{coveralls_coverdata, "_build/test/cover/*.coverdata"}. % or a string with wildcards or a list of files
+{coveralls_service_name, "github"}.
 {coveralls_parallel, true}.