diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 93d0c02b..34b5ce06 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -50,6 +50,10 @@ jobs:
       - name: Run tests
         run: bundle exec rake rspec-rerun:spec
         env:
-          COVERALLS: 1
+          COVERAGE: lcov
           DATABASE_URL: mysql2://user:password@127.0.0.1/test
           RAILS_ENV: test
+      - name: Upload coverage report to Coveralls
+        uses: coverallsapp/github-action@v1.1.2
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/Gemfile b/Gemfile
index 4043fa67..b8aa6a4a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -111,7 +111,7 @@ group :test do
   gem 'i18n-spec'
   # code coverage
   gem 'simplecov', require: false
-  gem 'coveralls', require: false
+  gem 'simplecov-lcov', require: false
   # api
   gem 'apivore', require: false
   gem 'hashie', '~> 3.4.6', require: false # https://github.com/westfieldlabs/apivore/issues/114
diff --git a/Gemfile.lock b/Gemfile.lock
index e2edb9f7..ad4e2c80 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -166,12 +166,6 @@ GEM
     concurrent-ruby (1.1.7)
     connection_pool (2.2.3)
     content_for_in_controllers (0.0.2)
-    coveralls (0.7.1)
-      multi_json (~> 1.3)
-      rest-client
-      simplecov (>= 0.7)
-      term-ansicolor
-      thor
     crass (1.0.6)
     daemons (1.3.1)
     database_cleaner (1.8.5)
@@ -186,8 +180,6 @@ GEM
     diff-lcs (1.4.4)
     diffy (3.4.0)
     docile (1.3.2)
-    domain_name (0.5.20190701)
-      unf (>= 0.0.5, < 1.0.0)
     doorkeeper (5.4.0)
       railties (>= 5)
     doorkeeper-i18n (5.2.2)
@@ -232,9 +224,6 @@ GEM
       nokogiri (>= 1.6.0)
       ruby_parser (~> 3.5)
     htmlentities (4.3.4)
-    http-accept (1.7.0)
-    http-cookie (1.0.3)
-      domain_name (~> 0.5)
     i18n (1.8.5)
       concurrent-ruby (~> 1.0)
     i18n-js (3.0.11)
@@ -315,7 +304,6 @@ GEM
     mustermann (1.1.1)
       ruby2_keywords (~> 0.0.1)
     mysql2 (0.5.3)
-    netrc (0.11.0)
     nio4r (2.5.2)
     nokogiri (1.10.10)
       mini_portile2 (~> 2.4.0)
@@ -412,11 +400,6 @@ GEM
       redis-namespace (~> 1.6)
       sinatra (>= 0.9.2)
       vegas (~> 0.1.2)
-    rest-client (2.1.0)
-      http-accept (>= 1.7.0, < 2.0)
-      http-cookie (>= 1.0.2, < 2.0)
-      mime-types (>= 1.16, < 4.0)
-      netrc (~> 0.8)
     roo (2.8.3)
       nokogiri (~> 1)
       rubyzip (>= 1.3.0, < 3.0.0)
@@ -479,6 +462,7 @@ GEM
       docile (~> 1.1)
       simplecov-html (~> 0.11)
     simplecov-html (0.12.2)
+    simplecov-lcov (0.8.0)
     sinatra (2.1.0)
       mustermann (~> 1.0)
       rack (~> 2.2)
@@ -499,10 +483,7 @@ GEM
     sqlite3 (1.3.13)
     sqlite3-ruby (1.3.3)
       sqlite3 (>= 1.3.3)
-    sync (0.5.0)
     temple (0.8.2)
-    term-ansicolor (1.7.1)
-      tins (~> 1.0)
     therubyracer (0.12.3)
       libv8 (~> 3.16.14.15)
       ref
@@ -513,8 +494,6 @@ GEM
     thor (1.0.1)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    tins (1.25.0)
-      sync
     ttfunk (1.6.2.1)
     twitter-bootstrap-rails (2.2.8)
       actionpack (>= 3.1)
@@ -569,7 +548,6 @@ DEPENDENCIES
   bullet
   capybara
   connection_pool
-  coveralls
   daemons
   database_cleaner
   date_time_attribute
@@ -630,6 +608,7 @@ DEPENDENCIES
   simple-navigation-bootstrap
   simple_form
   simplecov
+  simplecov-lcov
   spreadsheet
   sprockets (< 4)
   sqlite3 (~> 1.3.6)
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 8f96ef83..1bf89702 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -58,6 +58,15 @@ RSpec.configure do |config|
   config.infer_spec_type_from_file_location!
 end
 
+if ENV['COVERAGE'] == 'lcov'
+  require 'simplecov-lcov'
+  SimpleCov::Formatter::LcovFormatter.config do |c|
+    c.report_with_single_file = true
+    c.single_report_path = 'coverage/lcov.info'
+  end
+  SimpleCov.formatters = SimpleCov::Formatter::LcovFormatter
+end
+
 # include default foodsoft scope in urls, so that *_path works
 # https://github.com/rspec/rspec-rails/issues/255
 class ActionDispatch::Routing::RouteSet