diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 3d8dab8..db79cc2 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -63,23 +63,3 @@ jobs:
       env:
         RAILS_VERSION: 6.0.3.4
         ENGINE_CART_RAILS_OPTIONS: '--skip-git --skip-listen --skip-spring --skip-keeps --skip-action-cable --skip-coffee --skip-test'
-  test_rails5_2:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        ruby: [2.5]
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up Ruby
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: ${{ matrix.ruby }}
-    - name: Install dependencies
-      run: bundle install
-      env:
-        RAILS_VERSION: 5.2.4.2
-    - name: Run tests
-      run: bundle exec rake ci
-      env:
-        RAILS_VERSION: 5.2.4.2
-        ENGINE_CART_RAILS_OPTIONS: '--skip-git --skip-listen --skip-spring --skip-keeps --skip-action-cable --skip-coffee --skip-test'
diff --git a/Gemfile b/Gemfile
index a5960f9..2899645 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,6 +2,8 @@ source 'https://rubygems.org'
 
 gemspec
 
+gem 'blacklight', '~> 8.0.0.a', github: 'projectblacklight/blacklight', branch: 'main'
+
 # BEGIN ENGINE_CART BLOCK
 # engine_cart: 0.10.0
 # engine_cart stanza: 0.10.0
diff --git a/blacklight_advanced_search.gemspec b/blacklight_advanced_search.gemspec
index ef53372..e51bd98 100644
--- a/blacklight_advanced_search.gemspec
+++ b/blacklight_advanced_search.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |s|
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   s.require_paths = ["lib"]
 
-  s.add_dependency 'blacklight', '~> 7.0'
+  s.add_dependency 'blacklight', '~> 8.0.0.a'
   s.add_dependency "parslet"
 
   s.add_development_dependency "rails"