diff --git a/ckanext/data_qld/ckan_dataset.json b/ckanext/data_qld/ckan_dataset.json
index 1038386c..d1ebf723 100644
--- a/ckanext/data_qld/ckan_dataset.json
+++ b/ckanext/data_qld/ckan_dataset.json
@@ -172,6 +172,14 @@
                     "value": "annually",
                     "label": "Annually"
                 },
+                {
+                    "value": "biennially",
+                    "label": "Biennially"
+                },
+                {
+                    "value": "quadrennially",
+                    "label": "Quadrennially"
+                },
                 {
                     "value": "non-regular",
                     "label": "Non-regular"
diff --git a/ckanext/data_qld/resource_freshness/helpers/helpers.py b/ckanext/data_qld/resource_freshness/helpers/helpers.py
index 50737e99..f10ed980 100644
--- a/ckanext/data_qld/resource_freshness/helpers/helpers.py
+++ b/ckanext/data_qld/resource_freshness/helpers/helpers.py
@@ -14,11 +14,14 @@
 
 log = logging.getLogger(__name__)
 
+# Also update ckanext-data-qld/ckanext/data_qld/ckan_dataset.json
 update_frequencies = {
     "monthly": 30,
     "quarterly": 91,
     "half-yearly": 182,
-    "annually": 365
+    "annually": 365,
+    "biennially": 730,
+    "quadrennially": 1460
 }
 
 
diff --git a/test/features/resource_freshness.feature b/test/features/resource_freshness.feature
index 53719462..9bd14a1c 100644
--- a/test/features/resource_freshness.feature
+++ b/test/features/resource_freshness.feature
@@ -27,6 +27,32 @@ Feature: Resource freshness
             | TestOrgAdmin  |
             | TestOrgEditor |
 
+    Scenario Outline: An editor, admin or sysadmin user, when I go to the dataset new page and select 'biennially' update frequency, then the text 'Next update due' should be visible
+        Given "<User>" as the persona
+        When I log in
+        And I go to "/dataset/new"
+        And I select "biennially" from "update_frequency"
+        Then I should see "Next update due"
+
+        Examples: Users
+            | User          |
+            | SysAdmin      |
+            | TestOrgAdmin  |
+            | TestOrgEditor |
+
+    Scenario Outline: An editor, admin or sysadmin user, when I go to the dataset new page and select 'quadrennially' update frequency, then the text 'Next update due' should be visible
+        Given "<User>" as the persona
+        When I log in
+        And I go to "/dataset/new"
+        And I select "quadrennially" from "update_frequency"
+        Then I should see "Next update due"
+
+        Examples: Users
+            | User          |
+            | SysAdmin      |
+            | TestOrgAdmin  |
+            | TestOrgEditor |
+
     Scenario Outline: As a user with editing privileges, when I set a 'monthly' update frequently, I should still be able to update the dataset via the API
         Given "<User>" as the persona
         When I log in