diff --git a/Gemfile.lock b/Gemfile.lock
index 2ad9f5f0..ad04090b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -188,7 +188,7 @@ GEM
     irb (1.11.0)
       rdoc
       reline (>= 0.3.8)
-    json (2.6.3)
+    json (2.7.1)
     jwt (2.7.1)
     kaminari (1.2.2)
       activesupport (>= 4.1.0)
@@ -465,8 +465,8 @@ GEM
       opentelemetry-semantic_conventions
     opentelemetry-semantic_conventions (1.10.0)
       opentelemetry-api (~> 1.0)
-    parallel (1.23.0)
-    parser (3.2.2.3)
+    parallel (1.24.0)
+    parser (3.2.2.4)
       ast (~> 2.4.1)
       racc
     pg (1.5.4)
@@ -536,7 +536,7 @@ GEM
     redis (4.8.1)
     redis-namespace (1.11.0)
       redis (>= 4)
-    regexp_parser (2.8.1)
+    regexp_parser (2.8.3)
     reline (0.4.1)
       io-console (~> 0.5)
     request_store (1.5.1)
@@ -570,37 +570,38 @@ GEM
       rspec-mocks (~> 3.12)
       rspec-support (~> 3.12)
     rspec-support (3.12.1)
-    rubocop (1.55.0)
+    rubocop (1.59.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.2.2.3)
+      parser (>= 3.2.2.4)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
-      rubocop-ast (>= 1.28.1, < 2.0)
+      rubocop-ast (>= 1.30.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.29.0)
+    rubocop-ast (1.30.0)
       parser (>= 3.2.1.0)
-    rubocop-capybara (2.18.0)
+    rubocop-capybara (2.19.0)
       rubocop (~> 1.41)
-    rubocop-factory_bot (2.23.1)
+    rubocop-factory_bot (2.24.0)
       rubocop (~> 1.33)
-    rubocop-govuk (4.12.0)
-      rubocop (= 1.55.0)
-      rubocop-ast (= 1.29.0)
-      rubocop-rails (= 2.20.2)
+    rubocop-govuk (4.13.0)
+      rubocop (= 1.59.0)
+      rubocop-ast (= 1.30.0)
+      rubocop-rails (= 2.23.0)
       rubocop-rake (= 0.6.0)
-      rubocop-rspec (= 2.22.0)
-    rubocop-rails (2.20.2)
+      rubocop-rspec (= 2.25.0)
+    rubocop-rails (2.23.0)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.33.0, < 2.0)
+      rubocop-ast (>= 1.30.0, < 2.0)
     rubocop-rake (0.6.0)
       rubocop (~> 1.0)
-    rubocop-rspec (2.22.0)
-      rubocop (~> 1.33)
+    rubocop-rspec (2.25.0)
+      rubocop (~> 1.40)
       rubocop-capybara (~> 2.17)
       rubocop-factory_bot (~> 2.22)
     ruby-progressbar (1.13.0)
@@ -636,7 +637,7 @@ GEM
     timeout (0.4.1)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    unicode-display_width (2.4.2)
+    unicode-display_width (2.5.0)
     user_agent_parser (2.16.0)
     version_gem (1.1.3)
     warden (1.2.9)
diff --git a/app/workers/content_item_populate_doctype_worker.rb b/app/workers/content_item_populate_doctype_worker.rb
index 0c242300..b876f23c 100644
--- a/app/workers/content_item_populate_doctype_worker.rb
+++ b/app/workers/content_item_populate_doctype_worker.rb
@@ -5,7 +5,7 @@ def perform
     content_store = GdsApi::ContentStore.new(Plek.find("content-store"))
     document_type_errors = []
 
-    ContentItem.all.each do |content_item|
+    ContentItem.find_each do |content_item|
       found_content_item = content_store.content_item(content_item.path)
 
       document_type = found_content_item["document_type"]
diff --git a/db/schema.rb b/db/schema.rb
index aa749dbb..f0e3e578 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2019_01_30_105818) do
+ActiveRecord::Schema[7.1].define(version: 2019_01_30_105818) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
diff --git a/spec/workers/content_item_populate_doctype_worker_spec.rb b/spec/workers/content_item_populate_doctype_worker_spec.rb
index 1329b6d2..d515fdd5 100644
--- a/spec/workers/content_item_populate_doctype_worker_spec.rb
+++ b/spec/workers/content_item_populate_doctype_worker_spec.rb
@@ -6,7 +6,7 @@
 
   it "updates every content item's `document_type`" do
     content_item = double("ContentItem", path: "foo")
-    allow(ContentItem).to receive(:all).and_return([content_item])
+    allow(ContentItem).to receive(:find_each).and_yield(content_item)
     mock_content_store = double("ContentStore", content_item: { "document_type" => "foo_doctype" })
     allow(GdsApi::ContentStore).to receive(:new).and_return(mock_content_store)