diff --git a/app/helpers/bulk_upload/sales_log_to_csv.rb b/app/helpers/bulk_upload/sales_log_to_csv.rb
index cb31d9365..1171f481f 100644
--- a/app/helpers/bulk_upload/sales_log_to_csv.rb
+++ b/app/helpers/bulk_upload/sales_log_to_csv.rb
@@ -70,7 +70,7 @@ class BulkUpload::SalesLogToCsv
     when 2025
       (1..121).to_a
     when 2026
-      (1..BulkUpload::Lettings::Year2026::CsvParser::FIELDS).to_a
+      (1..BulkUpload::Sales::Year2026::CsvParser::FIELDS).to_a
     else
       raise NotImplementedError "No mapping function implemented for year #{year}"
     end
diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 174ecda02..5412cb0be 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -24,10 +24,12 @@ GEM
       ffi (>= 1.15.0)
     eventmachine (1.2.7)
     execjs (2.8.1)
-    faraday (2.7.4)
-      faraday-net_http (>= 2.0, < 3.1)
-      ruby2_keywords (>= 0.0.4)
-    faraday-net_http (3.0.2)
+    faraday (2.14.1)
+      faraday-net_http (>= 2.0, < 3.5)
+      json
+      logger
+    faraday-net_http (3.4.2)
+      net-http (~> 0.5)
     ffi (1.15.5)
     forwardable-extended (2.6.0)
     gemoji (3.0.1)
@@ -196,6 +198,7 @@ GEM
       gemoji (~> 3.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0, < 5.0)
+    json (2.18.1)
     kramdown (2.3.2)
       rexml
     kramdown-parser-gfm (1.1.0)
@@ -204,12 +207,15 @@ GEM
     listen (3.8.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
+    logger (1.7.0)
     mercenary (0.3.6)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     minitest (5.19.0)
+    net-http (0.9.1)
+      uri (>= 0.11.1)
     nokogiri (1.18.9-arm64-darwin)
       racc (~> 1.4)
     nokogiri (1.18.9-x86_64-darwin)
@@ -228,7 +234,6 @@ GEM
       ffi (~> 1.0)
     rexml (3.4.2)
     rouge (3.26.0)
-    ruby2_keywords (0.0.5)
     rubyzip (2.3.2)
     safe_yaml (1.0.5)
     sass (3.7.4)
@@ -251,6 +256,7 @@ GEM
       unf_ext
     unf_ext (0.0.8.2)
     unicode-display_width (1.8.0)
+    uri (1.1.1)
     webrick (1.8.2)
 
 PLATFORMS
diff --git a/spec/fixtures/variable_definitions/sales_download_26_27.csv b/spec/fixtures/variable_definitions/sales_download_26_27.csv
index cf5641921..6d981a0c0 100644
--- a/spec/fixtures/variable_definitions/sales_download_26_27.csv
+++ b/spec/fixtures/variable_definitions/sales_download_26_27.csv
@@ -279,3 +279,9 @@ has_mscharge,Does the property have any monthly leasehold charges?
 mscharge,What are the total monthly leasehold charges for the property?
 discount,What was the percentage discount?
 grant,What was the amount of any loan, grant, discount or subsidy given?
+sexrab1,What was buyer 1's sex at birth?,,,
+sexrab2,What was buyer/person 2's sex at birth?,,,
+sexrab3,What was person 3's sex at birth?,,,
+sexrab4,What was person 4's sex at birth?,,,
+sexrab5,What was person 5's sex at birth?,,,
+sexrab6,What was person 6's sex at birth?,,,
diff --git a/spec/lib/tasks/log_variable_definitions_spec.rb b/spec/lib/tasks/log_variable_definitions_spec.rb
index af9976362..92ebaf78a 100644
--- a/spec/lib/tasks/log_variable_definitions_spec.rb
+++ b/spec/lib/tasks/log_variable_definitions_spec.rb
@@ -6,7 +6,7 @@ RSpec.describe "log_variable_definitions" do
     subject(:task) { Rake::Task["data_import:add_variable_definitions"] }
 
     let(:path) { "spec/fixtures/variable_definitions" }
-    let(:total_variable_definitions_count) { 425 }
+    let(:total_variable_definitions_count) { 427 }
 
     before do
       Rake.application.rake_require("tasks/log_variable_definitions")
diff --git a/spec/services/bulk_upload/sales/year2026/csv_parser_spec.rb b/spec/services/bulk_upload/sales/year2026/csv_parser_spec.rb
index 41ed9e91a..ea97dfac7 100644
--- a/spec/services/bulk_upload/sales/year2026/csv_parser_spec.rb
+++ b/spec/services/bulk_upload/sales/year2026/csv_parser_spec.rb
@@ -15,8 +15,8 @@ RSpec.describe BulkUpload::Sales::Year2026::CsvParser do
       file.write("Can be empty?\n")
       file.write("Type of letting the question applies to\n")
       file.write("Duplicate check field?\n")
-      file.write(BulkUpload::SalesLogToCsv.new(log:).default_field_numbers_row_for_year(2025))
-      file.write(BulkUpload::SalesLogToCsv.new(log:).to_year_csv_row(2025))
+      file.write(BulkUpload::SalesLogToCsv.new(log:).default_field_numbers_row_for_year(2026))
+      file.write(BulkUpload::SalesLogToCsv.new(log:).to_year_csv_row(2026))
       file.write("\n")
       file.rewind
     end
@@ -81,8 +81,8 @@ RSpec.describe BulkUpload::Sales::Year2026::CsvParser do
       file.write("Can be empty?\n")
       file.write("Type of letting the question applies to\n")
       file.write("Duplicate check field?\n")
-      file.write(BulkUpload::SalesLogToCsv.new(log:).default_field_numbers_row_for_year(2025, seed:))
-      file.write(BulkUpload::SalesLogToCsv.new(log:).to_year_csv_row(2025, seed:))
+      file.write(BulkUpload::SalesLogToCsv.new(log:).default_field_numbers_row_for_year(2026, seed:))
+      file.write(BulkUpload::SalesLogToCsv.new(log:).to_year_csv_row(2026, seed:))
       file.rewind
     end