diff --git a/Gemfile.lock b/Gemfile.lock
index 7ae6a9476..c395f951f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -67,7 +67,7 @@ GEM
     audited (4.9.0)
       activerecord (>= 4.2, < 6.1)
     aws-eventstream (1.0.3)
-    aws-partitions (1.269.0)
+    aws-partitions (1.271.0)
     aws-sdk-core (3.89.1)
       aws-eventstream (~> 1.0, >= 1.0.2)
       aws-partitions (~> 1, >= 1.239.0)
@@ -76,7 +76,7 @@ GEM
     aws-sdk-kms (1.28.0)
       aws-sdk-core (~> 3, >= 3.71.0)
       aws-sigv4 (~> 1.1)
-    aws-sdk-s3 (1.60.1)
+    aws-sdk-s3 (1.60.2)
       aws-sdk-core (~> 3, >= 3.83.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.1)
@@ -109,7 +109,7 @@ GEM
       latex-decode (~> 0.0)
     binding_of_caller (0.8.0)
       debug_inspector (>= 0.0.1)
-    bolognese (1.4.1)
+    bolognese (1.4.3)
       activesupport (>= 4.2.5, < 6)
       benchmark_methods (~> 0.7)
       bibtex-ruby (~> 4.1)
@@ -178,7 +178,7 @@ GEM
     css_parser (1.7.1)
       addressable
     dalli (2.7.10)
-    database_cleaner (1.8.1)
+    database_cleaner (1.8.2)
     debug_inspector (0.0.3)
     diff-lcs (1.3)
     diffy (3.3.0)
@@ -231,14 +231,15 @@ GEM
       faraday (>= 0.15)
     fast_jsonapi (1.5)
       activesupport (>= 4.2)
-    ffi (1.12.1)
+    ffi (1.12.2)
     flipper (0.17.2)
     flipper-active_support_cache_store (0.17.2)
       activesupport (>= 4.2, < 7)
       flipper (~> 0.17.2)
     gender_detector (0.1.2)
       unicode_utils (>= 1.3.0)
-    git (1.5.0)
+    git (1.6.0)
+      rchardet (~> 1.8)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
     google-protobuf (3.10.0.rc.1)
@@ -254,7 +255,7 @@ GEM
     hamster (3.0.0)
       concurrent-ruby (~> 1.0)
     hashdiff (1.0.0)
-    hashie (4.0.0)
+    hashie (4.1.0)
     htmlentities (4.3.4)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
@@ -341,7 +342,7 @@ GEM
     minitest (5.14.0)
     money (6.13.7)
       i18n (>= 0.6.4, <= 2)
-    msgpack (1.3.1)
+    msgpack (1.3.3)
     multi_json (1.14.1)
     multipart-post (2.1.1)
     mysql2 (0.4.10)
@@ -408,6 +409,7 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
+    rchardet (1.8.0)
     rdf (3.1.1)
       hamster (~> 3.0)
       link_header (~> 0.0, >= 0.0.8)
@@ -449,7 +451,7 @@ GEM
     rspec-expectations (3.9.0)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
-    rspec-graphql_matchers (1.1)
+    rspec-graphql_matchers (1.2)
       graphql (>= 1.8, < 2.0)
     rspec-mocks (3.9.1)
       diff-lcs (>= 1.2.0, < 2.0)
@@ -515,7 +517,7 @@ GEM
       regexp_parser (~> 1.3, >= 1.3.0)
     strip_attributes (1.9.0)
       activemodel (>= 3.0, < 7.0)
-    strong_migrations (0.6.1)
+    strong_migrations (0.6.2)
       activerecord (>= 5)
     sxp (1.1.0)
       rdf (~> 3.1)
@@ -541,7 +543,7 @@ GEM
     uuid (2.3.9)
       macaddr (~> 1.0)
     vcr (3.0.3)
-    webmock (3.8.0)
+    webmock (3.8.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
diff --git a/app/models/doi.rb b/app/models/doi.rb
index 6ba02581a..a1d445f77 100644
--- a/app/models/doi.rb
+++ b/app/models/doi.rb
@@ -923,7 +923,9 @@ def view_count
   end
 
   def views_over_time
-    views.pluck(:occurred_at, :total).map { |v| { year_month: v[0].present? ? v[0].utc.iso8601[0..6] : nil, total: v[1] } }
+    views.pluck(:occurred_at, :total)
+      .map { |v| { year_month: v[0].present? ? v[0].utc.iso8601[0..6] : nil, total: v[1] } }
+      .sort_by { |h| h[:year_month] }
   end
 
   def download_count
@@ -931,7 +933,9 @@ def download_count
   end
 
   def downloads_over_time
-    downloads.pluck(:occurred_at, :total).map { |v| { year_month: v[0].present? ? v[0].utc.iso8601[0..6] : nil, total: v[1] } }
+    downloads.pluck(:occurred_at, :total)
+      .map { |v| { year_month: v[0].present? ? v[0].utc.iso8601[0..6] : nil, total: v[1] } }
+      .sort_by { |h| h[:year_month] }
   end
 
   def reference_ids
diff --git a/spec/requests/dois_spec.rb b/spec/requests/dois_spec.rb
index e8d0c6c12..ebb68a0be 100644
--- a/spec/requests/dois_spec.rb
+++ b/spec/requests/dois_spec.rb
@@ -855,6 +855,41 @@
       end
     end
 
+    context 'when the date issued is changed to :tba' do
+      let(:xml) { Base64.strict_encode64(file_fixture('datacite.xml').read) }
+      let(:valid_attributes) do
+        {
+          "data" => {
+            "type" => "dois",
+            "attributes" => {
+              "url" => "http://www.bl.uk/pdf/pat.pdf",
+              "xml" => xml,
+              "dates" => { 
+                "date" => ":tba",
+                "dateType" => "Issued"
+              },
+              "event" => "publish"
+            }
+          }
+        }
+      end
+
+      it 'updates the record' do
+        patch "/dois/#{doi.doi}", valid_attributes, headers
+
+        expect(last_response.status).to eq(200)
+        expect(json.dig('data', 'attributes', 'url')).to eq("http://www.bl.uk/pdf/pat.pdf")
+        expect(json.dig('data', 'attributes', 'doi')).to eq(doi.doi.downcase)
+        expect(json.dig('data', 'attributes', 'dates')).to eq("date"=>":tba", "dateType"=>"Issued")
+      end
+
+      it 'sets state to findable' do
+        patch "/dois/#{doi.doi}", valid_attributes, headers
+
+        expect(json.dig('data', 'attributes', 'state')).to eq("findable")
+      end
+    end
+
     context 'when the title is changed' do
       let(:xml) { Base64.strict_encode64(file_fixture('datacite.xml').read) }
       let(:titles) { [{ "title" => "Submitted chemical data for InChIKey=YAPQBXQYLJRXSA-UHFFFAOYSA-N" }] }