diff --git a/.travis.yml b/.travis.yml
index f471edf..e44b7d3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,8 +13,12 @@ matrix:
   include:
     - rvm: ruby-head
       gemfile: Gemfile
+    - rvm: 2.7
+      gemfile: gemfiles/rspec4rails6.gemfile
     - rvm: 2.6
       gemfile: gemfiles/rspec4rails6.gemfile
+    - rvm: 2.7
+      gemfile: gemfiles/rspec4rails5.gemfile
     - rvm: 2.6
       gemfile: gemfiles/rspec4rails5.gemfile
     - rvm: 2.6
diff --git a/lib/action_cable/testing/connection/test_case.rb b/lib/action_cable/testing/connection/test_case.rb
index 069f53e..3afbd34 100644
--- a/lib/action_cable/testing/connection/test_case.rb
+++ b/lib/action_cable/testing/connection/test_case.rb
@@ -193,7 +193,7 @@ def connect(path = ActionCable.server.config.mount_path, cookies: nil, **request
 
           connection = self.class.connection_class.allocate
           connection.singleton_class.include(TestConnection)
-          connection.send(:initialize, build_test_request(path, request_params))
+          connection.send(:initialize, build_test_request(path, **request_params))
           connection.connect if connection.respond_to?(:connect)
 
           # Only set instance variable if connected successfully
diff --git a/lib/rspec/rails/matchers/action_cable/have_broadcasted_to.rb b/lib/rspec/rails/matchers/action_cable/have_broadcasted_to.rb
index cff635e..ca16bd4 100644
--- a/lib/rspec/rails/matchers/action_cable/have_broadcasted_to.rb
+++ b/lib/rspec/rails/matchers/action_cable/have_broadcasted_to.rb
@@ -17,10 +17,10 @@ def initialize(target, channel:)
             set_expected_number(:exactly, 1)
           end
 
-          def with(data = nil)
+          def with(data = nil, &block)
             @data = data
             @data = @data.with_indifferent_access if @data.is_a?(Hash)
-            @block = Proc.new if block_given?
+            @block = block if block_given?
             self
           end