diff --git a/app/models/derived_variables/sales_log_variables.rb b/app/models/derived_variables/sales_log_variables.rb
index cfcb44d82..a23b91c46 100644
--- a/app/models/derived_variables/sales_log_variables.rb
+++ b/app/models/derived_variables/sales_log_variables.rb
@@ -61,6 +61,7 @@ module DerivedVariables::SalesLogVariables
     if uprn_known == 1 && uprn_confirmed&.zero?
       reset_address_fields!
       self.uprn_known = 0
+      self.uprn_confirmed = nil
     end
 
     if manual_address_entry_selected
diff --git a/spec/models/form/lettings/pages/address_fallback_spec.rb b/spec/models/form/lettings/pages/address_fallback_spec.rb
index f687bdc21..ffac6238e 100644
--- a/spec/models/form/lettings/pages/address_fallback_spec.rb
+++ b/spec/models/form/lettings/pages/address_fallback_spec.rb
@@ -24,6 +24,6 @@ RSpec.describe Form::Lettings::Pages::AddressFallback, type: :model do
   end
 
   it "has correct depends_on" do
-    expect(page.depends_on).to eq([{ "address_search_input" => false, "is_supported_housing?" => false }])
+    expect(page.depends_on).to eq([{ "manual_address_entry_selected" => true, "is_supported_housing?" => false }])
   end
 end
diff --git a/spec/models/form/sales/pages/address_fallback_spec.rb b/spec/models/form/sales/pages/address_fallback_spec.rb
index 19bb37fa9..35bb6cd24 100644
--- a/spec/models/form/sales/pages/address_fallback_spec.rb
+++ b/spec/models/form/sales/pages/address_fallback_spec.rb
@@ -24,6 +24,6 @@ RSpec.describe Form::Sales::Pages::AddressFallback, type: :model do
   end
 
   it "has correct depends_on" do
-    expect(page.depends_on).to eq([{ "address_search_input" => false }])
+    expect(page.depends_on).to eq([{ "manual_address_entry_selected" => true }])
   end
 end
diff --git a/spec/shared/shared_log_examples.rb b/spec/shared/shared_log_examples.rb
index ef9ba32e6..90828a7f3 100644
--- a/spec/shared/shared_log_examples.rb
+++ b/spec/shared/shared_log_examples.rb
@@ -81,7 +81,6 @@ RSpec.shared_examples "shared log examples" do |log_type|
         expect { log.process_uprn_change! }.to change(log, :address_line1).from(nil).to("0, Building Name, Thoroughfare")
         .and change(log, :town_or_city).from(nil).to("Posttown")
         .and change(log, :postcode_full).from(nil).to("POSTCODE")
-        .and change(log, :uprn_confirmed).from(1).to(nil)
         .and change(log, :county).from("county").to(nil)
       end
     end