diff --git a/.ruby-version b/.ruby-version
index 75a22a26..fd2a0186 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.0.3
+3.1.0
diff --git a/lib/traject/pdc_describe_indexing_config.rb b/lib/traject/pdc_describe_indexing_config.rb
index bd86a7af..93c144c7 100644
--- a/lib/traject/pdc_describe_indexing_config.rb
+++ b/lib/traject/pdc_describe_indexing_config.rb
@@ -144,6 +144,8 @@
 
 to_field 'issue_date_ssim', extract_xpath("/hash/resource/publication-year")
 
+to_field 'year_available_itsi', extract_xpath("/hash/resource/publication-year")
+
 to_field 'pdc_created_at_dtsi', extract_xpath('/hash/created-at')
 
 to_field "issue_date_strict_ssi" do |record, accumulator, _context|
diff --git a/spec/system/search_pdc_results_page_spec.rb b/spec/system/search_pdc_results_page_spec.rb
index 5d2b8fae..1a63be63 100644
--- a/spec/system/search_pdc_results_page_spec.rb
+++ b/spec/system/search_pdc_results_page_spec.rb
@@ -33,5 +33,10 @@
     expect(page).to have_content("System Studies")
     click_on("System Studies")
     expect(page).to have_content("Fusion Pilot Plant performance and the role of a Sustained High Power Density tokamak")
+
+    click_on "Year Published"
+    expect(page).to have_content "View larger"
+    expect(page).not_to have_content "[Missing]"
+    expect(page).to have_content "2022\n2022"
   end
 end