diff --git a/tests/data/metadata/discovery/cd-surface-weather-observations.yml b/tests/data/metadata/discovery/cd-surface-weather-observations.yml
index 2acda5756..8c13ac0f4 100644
--- a/tests/data/metadata/discovery/cd-surface-weather-observations.yml
+++ b/tests/data/metadata/discovery/cd-surface-weather-observations.yml
@@ -39,7 +39,7 @@ identification:
             keywords_type: theme
             vocabulary:
                 name: Earth system disciplines as defined by the WMO Unified Data Policy, Resolution 1 (Cg-Ext(2021), Annex 1.
-                url: https://codes.wmo.int/topic-hierarchy/earth-system-discipline
+                url: https://codes.wmo.int/wis/topic-hierarchy/earth-system-discipline
     extents:
         spatial:
             - bbox: [11.0937728207,-5.03798674888,18.4530652198,3.72819651938]
diff --git a/tests/data/metadata/discovery/int-wmo-test-drifting-buoys.yml b/tests/data/metadata/discovery/int-wmo-test-drifting-buoys.yml
index 1f356f7d9..065b54158 100644
--- a/tests/data/metadata/discovery/int-wmo-test-drifting-buoys.yml
+++ b/tests/data/metadata/discovery/int-wmo-test-drifting-buoys.yml
@@ -37,7 +37,7 @@ identification:
             keywords_type: theme
             vocabulary:
                 name: Earth system disciplines as defined by the WMO Unified Data Policy, Resolution 1 (Cg-Ext(2021), Annex 1.
-                url: https://github.com/wmo-im/wis2-topic-hierarchy/blob/main/topic-hierarchy/earth-system-discipline/index.csv
+                url: https://codes.wmo.int/wis/topic-hierarchy/earth-system-discipline
     extents:
         spatial:
             - bbox: [-180.0, -90.0, 180.0, 90.0]
diff --git a/tests/data/metadata/discovery/int-wmo-test-ship-hourly.yml b/tests/data/metadata/discovery/int-wmo-test-ship-hourly.yml
index 3d5bd9f80..0e5308e80 100644
--- a/tests/data/metadata/discovery/int-wmo-test-ship-hourly.yml
+++ b/tests/data/metadata/discovery/int-wmo-test-ship-hourly.yml
@@ -37,7 +37,7 @@ identification:
             keywords_type: theme
             vocabulary:
                 name: Earth system disciplines as defined by the WMO Unified Data Policy, Resolution 1 (Cg-Ext(2021), Annex 1.
-                url: https://github.com/wmo-im/wis2-topic-hierarchy/blob/main/topic-hierarchy/earth-system-discipline/index.csv
+                url: https://codes.wmo.int/wis/topic-hierarchy/earth-system-discipline
     extents:
         spatial:
             - bbox: [-180.0, -90.0, 180.0, 90.0]
diff --git a/tests/data/metadata/discovery/int-wmo-test-wind-profile.yml b/tests/data/metadata/discovery/int-wmo-test-wind-profile.yml
index 1e12f3395..ec4abb6dc 100644
--- a/tests/data/metadata/discovery/int-wmo-test-wind-profile.yml
+++ b/tests/data/metadata/discovery/int-wmo-test-wind-profile.yml
@@ -34,7 +34,7 @@ identification:
             keywords_type: theme
             vocabulary:
                 name: Earth system disciplines as defined by the WMO Unified Data Policy, Resolution 1 (Cg-Ext(2021), Annex 1.
-                url: https://github.com/wmo-im/wis2-topic-hierarchy/blob/main/topic-hierarchy/earth-system-discipline/index.csv
+                url: https://codes.wmo.int/wis/topic-hierarchy/earth-system-discipline
     extents:
         spatial:
             - bbox: [-180.0, -90.0, 180.0, 90.0]