diff --git a/spec/factories/comments.rb b/spec/factories/comments.rb
index 7dea88b35f..114426c826 100644
--- a/spec/factories/comments.rb
+++ b/spec/factories/comments.rb
@@ -2,7 +2,7 @@
 
 FactoryBot.define do
   factory :comment do
-    association :commentable, factory: :post
+    commentable factory: %i(post)
     author
     sequence(:body) { |n| "OMG LOL #{n}" }
     # because our commenters are more polite than YouTube's
diff --git a/spec/factories/garden_collaborators.rb b/spec/factories/garden_collaborators.rb
index 20cabd2e9e..e238ea0826 100644
--- a/spec/factories/garden_collaborators.rb
+++ b/spec/factories/garden_collaborators.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 FactoryBot.define do
   factory :garden_collaborator do
     garden
diff --git a/spec/factories/notifications.rb b/spec/factories/notifications.rb
index ad51f7a9fa..036e702227 100644
--- a/spec/factories/notifications.rb
+++ b/spec/factories/notifications.rb
@@ -10,7 +10,7 @@
 
     body { "MyText" }
     read { false }
-    association :notifiable, factory: :post
+    notifiable factory: %i(post)
 
     factory :no_email_notification do
       recipient { FactoryBot.create(:no_email_notifications_member) }
diff --git a/spec/features/conversations/index_spec.rb b/spec/features/conversations/index_spec.rb
index a5225817cf..997d404e56 100644
--- a/spec/features/conversations/index_spec.rb
+++ b/spec/features/conversations/index_spec.rb
@@ -18,7 +18,7 @@
       click_link 'Inbox'
     end
 
-    include_examples 'is accessible'
+    it_behaves_like 'is accessible'
 
     it { expect(page).to have_content 'something i want to say' }
     it { page.percy_snapshot(page, name: 'conversations#index') }
diff --git a/spec/features/crops/alternate_name_spec.rb b/spec/features/crops/alternate_name_spec.rb
index 4cd37b9a8d..37f0b12be9 100644
--- a/spec/features/crops/alternate_name_spec.rb
+++ b/spec/features/crops/alternate_name_spec.rb
@@ -83,23 +83,23 @@
   end
 
   context 'Anonymous' do
-    include_examples 'show alt names'
+    it_behaves_like 'show alt names'
   end
 
   context 'Signed in member' do
     include_context 'signed in member'
-    include_examples 'show alt names'
+    it_behaves_like 'show alt names'
   end
 
   context 'Crop wrangler' do
     include_context 'signed in crop wrangler'
-    include_examples 'show alt names'
-    include_examples 'edit alt names'
+    it_behaves_like 'show alt names'
+    it_behaves_like 'edit alt names'
   end
 
   context 'Admin' do
     include_context 'signed in admin'
-    include_examples 'show alt names'
-    include_examples 'edit alt names'
+    it_behaves_like 'show alt names'
+    it_behaves_like 'edit alt names'
   end
 end
diff --git a/spec/features/crops/browse_crops_spec.rb b/spec/features/crops/browse_crops_spec.rb
index 7c64fd9d8a..4926032bcd 100644
--- a/spec/features/crops/browse_crops_spec.rb
+++ b/spec/features/crops/browse_crops_spec.rb
@@ -34,25 +34,25 @@
   end
 
   context 'anon' do
-    include_examples 'shows crops'
+    it_behaves_like 'shows crops'
     it { expect(page).to have_no_link "Add New Crop" }
   end
 
   context 'member' do
     include_context 'signed in member'
-    include_examples 'shows crops'
-    include_examples 'add new crop'
+    it_behaves_like 'shows crops'
+    it_behaves_like 'add new crop'
   end
 
   context 'wrangler' do
     include_context 'signed in crop wrangler'
-    include_examples 'shows crops'
-    include_examples 'add new crop'
+    it_behaves_like 'shows crops'
+    it_behaves_like 'add new crop'
   end
 
   context 'admin' do
     include_context 'signed in admin'
-    include_examples 'shows crops'
-    include_examples 'add new crop'
+    it_behaves_like 'shows crops'
+    it_behaves_like 'add new crop'
   end
 end
diff --git a/spec/features/crops/creating_a_crop_spec.rb b/spec/features/crops/creating_a_crop_spec.rb
index f87a44fbbb..d262d95f4e 100644
--- a/spec/features/crops/creating_a_crop_spec.rb
+++ b/spec/features/crops/creating_a_crop_spec.rb
@@ -33,7 +33,7 @@
 
   shared_examples 'request crop' do
     describe "requesting a crop with multiple scientific and alternate name" do
-      include_examples 'fill in form'
+      it_behaves_like 'fill in form'
       before do
         within "form#new_crop" do
           fill_in "request_notes", with: "This is the Philippine national flower."
@@ -50,7 +50,7 @@
 
   shared_examples 'create crop' do
     describe "creating a crop with multiple scientific and alternate name" do
-      include_examples 'fill in form'
+      it_behaves_like 'fill in form'
       before do
         click_button "Save"
       end
@@ -69,16 +69,16 @@
 
   context 'member' do
     include_context 'signed in member'
-    include_examples 'request crop'
+    it_behaves_like 'request crop'
   end
 
   context 'crop wrangler' do
     include_context 'signed in crop wrangler'
-    include_examples 'create crop'
+    it_behaves_like 'create crop'
   end
 
   context 'admin' do
     include_context 'signed in admin'
-    include_examples 'create crop'
+    it_behaves_like 'create crop'
   end
 end
diff --git a/spec/features/crops/crop_photos_spec.rb b/spec/features/crops/crop_photos_spec.rb
index 1bcfa3667a..8e6ee7aaec 100644
--- a/spec/features/crops/crop_photos_spec.rb
+++ b/spec/features/crops/crop_photos_spec.rb
@@ -59,17 +59,17 @@
 
   context "when signed in" do
     include_context 'signed in member'
-    include_examples "shows photos"
+    it_behaves_like "shows photos"
   end
 
   context "when signed in as photos owner" do
     include_context 'signed in member'
     let(:member) { owner_member }
 
-    include_examples "shows photos"
+    it_behaves_like "shows photos"
   end
 
   context "when not signed in" do
-    include_examples "shows photos"
+    it_behaves_like "shows photos"
   end
 end
diff --git a/spec/features/crops/delete_crop_spec.rb b/spec/features/crops/delete_crop_spec.rb
index 04750cd98e..8a3758d02a 100644
--- a/spec/features/crops/delete_crop_spec.rb
+++ b/spec/features/crops/delete_crop_spec.rb
@@ -27,11 +27,11 @@
 
   context "As a crop wrangler" do
     include_context 'signed in crop wrangler'
-    include_examples 'delete crop'
+    it_behaves_like 'delete crop'
   end
 
   context 'admin' do
     include_context 'signed in admin'
-    include_examples 'delete crop'
+    it_behaves_like 'delete crop'
   end
 end
diff --git a/spec/features/gardens/actions_spec.rb b/spec/features/gardens/actions_spec.rb
index 19ec7cb6ff..57ca96be57 100644
--- a/spec/features/gardens/actions_spec.rb
+++ b/spec/features/gardens/actions_spec.rb
@@ -25,7 +25,7 @@
       context 'my gardens' do
         before { visit gardens_path(member_slug: member.slug) }
 
-        include_examples "has buttons bar at top"
+        it_behaves_like "has buttons bar at top"
 
         context 'with actions menu expanded' do
           before { click_link 'Actions' }
@@ -43,13 +43,13 @@
       context 'all gardens' do
         before { visit gardens_path }
 
-        include_examples "has buttons bar at top"
+        it_behaves_like "has buttons bar at top"
       end
 
       context "other member's garden" do
         before { visit gardens_path(member_slug: FactoryBot.create(:member).slug) }
 
-        include_examples "has buttons bar at top"
+        it_behaves_like "has buttons bar at top"
         describe 'does not show actions on other member garden' do
           it { is_expected.to have_no_link 'Actions' }
         end
diff --git a/spec/features/gardens/adding_gardens_spec.rb b/spec/features/gardens/adding_gardens_spec.rb
index 89e6015794..a953ad5e0a 100644
--- a/spec/features/gardens/adding_gardens_spec.rb
+++ b/spec/features/gardens/adding_gardens_spec.rb
@@ -8,7 +8,7 @@
     include_context 'signed in member'
     before { visit new_garden_path }
 
-    include_examples 'is accessible'
+    it_behaves_like 'is accessible'
 
     it "displays required and optional fields properly" do
       expect(page).to have_selector ".required", text: "Name"
diff --git a/spec/features/gardens/index_spec.rb b/spec/features/gardens/index_spec.rb
index 1b7bfd502f..1aa246afc7 100644
--- a/spec/features/gardens/index_spec.rb
+++ b/spec/features/gardens/index_spec.rb
@@ -14,7 +14,7 @@
         visit member_gardens_path(member_slug: member.slug)
       end
 
-      include_examples 'is accessible'
+      it_behaves_like 'is accessible'
 
       it "displays each of the gardens" do
         member.gardens.each do |garden|
diff --git a/spec/features/harvests/harvesting_a_crop_spec.rb b/spec/features/harvests/harvesting_a_crop_spec.rb
index 9cfbe787a6..f1c8e56c4e 100644
--- a/spec/features/harvests/harvesting_a_crop_spec.rb
+++ b/spec/features/harvests/harvesting_a_crop_spec.rb
@@ -26,7 +26,7 @@
 
       within "form#new_harvest" do
         choose plant_part.name
-        fill_in "When?", with: Time.new(2014, 6, 15)
+        fill_in "When?", with: Time.zone.local(2014, 6, 15)
         fill_in "How many?", with: 42
         fill_in "Weighing (in total)", with: 42
         fill_in "Notes", with: "It's killer."
diff --git a/spec/features/likeable_spec.rb b/spec/features/likeable_spec.rb
index 95ee13f6f3..d10f6162dc 100644
--- a/spec/features/likeable_spec.rb
+++ b/spec/features/likeable_spec.rb
@@ -58,13 +58,13 @@ def like_count_class
     describe 'photos#index' do
       let(:path) { photos_path }
 
-      include_examples 'object can be liked'
+      it_behaves_like 'object can be liked'
     end
 
     describe 'photos#show' do
       let(:path) { photo_path(photo) }
 
-      include_examples 'object can be liked'
+      it_behaves_like 'object can be liked'
     end
 
     describe 'crops#show' do
@@ -74,7 +74,7 @@ def like_count_class
 
       before { planting.photos << photo }
 
-      include_examples 'object can be liked'
+      it_behaves_like 'object can be liked'
     end
   end
 
@@ -82,27 +82,27 @@ def like_count_class
     let(:like_count_class) { ".post-#{post.id} .like-count" }
     let(:path) { post_path(post) }
 
-    include_examples 'object can be liked'
+    it_behaves_like 'object can be liked'
   end
 
   describe 'activities' do
     let(:like_count_class) { ".activity-#{activity.id} .like-count" }
     let(:path) { activity_path(activity) }
 
-    include_examples 'object can be liked'
+    it_behaves_like 'object can be liked'
   end
 
   describe 'plantings' do
     let(:like_count_class) { ".planting-#{planting.id} .like-count" }
     let(:path) { planting_path(planting) }
 
-    include_examples 'object can be liked'
+    it_behaves_like 'object can be liked'
   end
 
   describe 'harvests' do
     let(:like_count_class) { ".harvest-#{harvest.id} .like-count" }
     let(:path) { harvest_path(harvest) }
 
-    include_examples 'object can be liked'
+    it_behaves_like 'object can be liked'
   end
 end
diff --git a/spec/features/members/deletion_spec.rb b/spec/features/members/deletion_spec.rb
index 6c3e75d8ee..263f622a75 100644
--- a/spec/features/members/deletion_spec.rb
+++ b/spec/features/members/deletion_spec.rb
@@ -96,7 +96,7 @@
       end
 
       describe 'member exists but is marked deleted' do
-        subject { Member.all.find(member.id) }
+        subject { Member.find(member.id) }
 
         it { expect(subject).to eq member }
         it { expect(subject.discarded?).to be true }
diff --git a/spec/features/signout_spec.rb b/spec/features/signout_spec.rb
index 3756ae4376..b03e610a98 100644
--- a/spec/features/signout_spec.rb
+++ b/spec/features/signout_spec.rb
@@ -34,11 +34,11 @@
   end
 
   describe 'after signout, redirect to signin page if page needs authentication' do
-    include_examples "sign-in redirects", "/plantings/new"
-    include_examples "sign-in redirects", "/harvests/new"
-    include_examples "sign-in redirects", "/posts/new"
-    include_examples "sign-in redirects", "/gardens/new"
-    include_examples "sign-in redirects", "/seeds/new"
+    it_behaves_like "sign-in redirects", "/plantings/new"
+    it_behaves_like "sign-in redirects", "/harvests/new"
+    it_behaves_like "sign-in redirects", "/posts/new"
+    it_behaves_like "sign-in redirects", "/gardens/new"
+    it_behaves_like "sign-in redirects", "/seeds/new"
   end
 
   it 'photos' do
diff --git a/spec/models/crop_spec.rb b/spec/models/crop_spec.rb
index 9dd9bc3b2e..1a15d19d58 100644
--- a/spec/models/crop_spec.rb
+++ b/spec/models/crop_spec.rb
@@ -154,7 +154,7 @@
 
       it { expect(crop.default_photo).to eq photo }
 
-      include_examples 'has default photo'
+      it_behaves_like 'has default photo'
     end
 
     context 'with a harvest photo' do
@@ -165,7 +165,7 @@
 
       it { expect(crop.default_photo).to eq photo }
 
-      include_examples 'has default photo'
+      it_behaves_like 'has default photo'
 
       context 'and planting photo' do
         let(:planting) { FactoryBot.create(:planting, crop:) }
diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index bd64cd3336..cded822ec9 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -70,8 +70,8 @@
 # directory. Alternatively, in the individual `*_spec.rb` files, manually
 # require only the support files necessary.
 #
-Dir[Rails.root.join("spec/support/**/*.rb")].sort.each { |f| require f }
-Dir[Rails.root.join("spec/features/shared_examples/**/*.rb")].sort.each { |f| require f }
+Rails.root.glob("spec/support/**/*.rb").sort.each { |f| require f }
+Rails.root.glob("spec/features/shared_examples/**/*.rb").sort.each { |f| require f }
 
 # Checks for pending migrations before tests are run.
 # If you are not using ActiveRecord, you can remove this line.
diff --git a/spec/requests/api/v1/activities_request_spec.rb b/spec/requests/api/v1/activities_request_spec.rb
index 0eb5e98a82..33a93512ff 100644
--- a/spec/requests/api/v1/activities_request_spec.rb
+++ b/spec/requests/api/v1/activities_request_spec.rb
@@ -3,7 +3,7 @@
 require 'rails_helper'
 
 RSpec.describe 'Activities', type: :request do
-  subject { JSON.parse response.body }
+  subject { response.parsed_body }
 
   let(:headers) { { 'Accept' => 'application/vnd.api+json' } }
   let!(:activity) { FactoryBot.create(:activity, garden: create(:garden), planting: create(:planting)) }
diff --git a/spec/support/feature_helpers.rb b/spec/support/feature_helpers.rb
index 8040cdd3af..e202b153b5 100644
--- a/spec/support/feature_helpers.rb
+++ b/spec/support/feature_helpers.rb
@@ -14,17 +14,17 @@ def select_from_autocomplete(select)
 
   shared_context 'signed in member' do
     let(:member) { FactoryBot.create(:member) }
-    include_examples 'sign in'
+    it_behaves_like 'sign in'
   end
 
   shared_context 'signed in crop wrangler' do
     let(:member) { FactoryBot.create(:crop_wrangling_member) }
-    include_examples 'sign in'
+    it_behaves_like 'sign in'
   end
 
   shared_context 'signed in admin' do
     let(:member) { FactoryBot.create(:admin_member) }
-    include_examples 'sign in'
+    it_behaves_like 'sign in'
   end
 
   shared_context 'sign in' do
diff --git a/spec/views/photos/show.html.haml_spec.rb b/spec/views/photos/show.html.haml_spec.rb
index e518e382c1..a223466425 100644
--- a/spec/views/photos/show.html.haml_spec.rb
+++ b/spec/views/photos/show.html.haml_spec.rb
@@ -58,7 +58,7 @@
       render
     end
 
-    include_examples "photo data renders"
+    it_behaves_like "photo data renders"
 
     it "has a delete button" do
       assert_select "a[href='#{photo_path(@photo)}']"
@@ -71,8 +71,8 @@
       render
     end
 
-    include_examples "photo data renders"
-    include_examples "No links to change data"
+    it_behaves_like "photo data renders"
+    it_behaves_like "No links to change data"
   end
 
   context "not signed in" do
@@ -81,8 +81,8 @@
       render
     end
 
-    include_examples "photo data renders"
-    include_examples "No links to change data"
+    it_behaves_like "photo data renders"
+    it_behaves_like "No links to change data"
   end
 
   context "CC-licensed photo" do
diff --git a/spec/views/seeds/index.rss.haml_spec.rb b/spec/views/seeds/index.rss.haml_spec.rb
index e68c2c62b6..e2d457c579 100644
--- a/spec/views/seeds/index.rss.haml_spec.rb
+++ b/spec/views/seeds/index.rss.haml_spec.rb
@@ -31,7 +31,7 @@
       render
     end
 
-    include_examples 'displays seed in rss feed'
+    it_behaves_like 'displays seed in rss feed'
 
     it 'shows RSS feed title' do
       expect(rendered).to have_content "Recent seeds from all members"
@@ -60,6 +60,6 @@
       expect(rendered).to have_content "Recent seeds from #{seed.owner}"
     end
 
-    include_examples 'displays seed in rss feed'
+    it_behaves_like 'displays seed in rss feed'
   end
 end