diff --git a/tests/data-files/catalogs/cbers-partial/CBERS4AWFI/collection.json b/tests/data-files/catalogs/cbers-partial/CBERS4AWFI/collection.json
index fd61437e2..32adb9d65 100644
--- a/tests/data-files/catalogs/cbers-partial/CBERS4AWFI/collection.json
+++ b/tests/data-files/catalogs/cbers-partial/CBERS4AWFI/collection.json
@@ -16,8 +16,7 @@
     }
   ],
   "stac_extensions": [
-    "https://stac-extensions.github.io/eo/v1.1.0/schema.json",
-    "https://schemas.stacspec.org/v1.0.0-beta.2/extensions/item-assets/json-schema/schema.json"
+    "https://stac-extensions.github.io/eo/v1.1.0/schema.json"
   ],
   "providers": [
     {
diff --git a/tests/data-files/catalogs/cbers-partial/CBERS4MUX/collection.json b/tests/data-files/catalogs/cbers-partial/CBERS4MUX/collection.json
index 2139aac93..ce858a261 100644
--- a/tests/data-files/catalogs/cbers-partial/CBERS4MUX/collection.json
+++ b/tests/data-files/catalogs/cbers-partial/CBERS4MUX/collection.json
@@ -16,8 +16,7 @@
     }
   ],
   "stac_extensions": [
-    "https://stac-extensions.github.io/eo/v1.1.0/schema.json",
-    "https://stac-extensions.github.io/item-assets/v1.0.0/schema.json"
+    "https://stac-extensions.github.io/eo/v1.1.0/schema.json"
   ],
   "providers": [
     {
diff --git a/tests/data-files/catalogs/cbers-partial/CBERS4PAN10M/collection.json b/tests/data-files/catalogs/cbers-partial/CBERS4PAN10M/collection.json
index d33eef2cf..972e5aab3 100644
--- a/tests/data-files/catalogs/cbers-partial/CBERS4PAN10M/collection.json
+++ b/tests/data-files/catalogs/cbers-partial/CBERS4PAN10M/collection.json
@@ -16,8 +16,7 @@
     }
   ],
   "stac_extensions": [
-    "https://stac-extensions.github.io/eo/v1.1.0/schema.json",
-    "https://stac-extensions.github.io/item-assets/v1.0.0/schema.json"
+    "https://stac-extensions.github.io/eo/v1.1.0/schema.json"
   ],
   "providers": [
     {
diff --git a/tests/data-files/catalogs/cbers-partial/CBERS4PAN5M/collection.json b/tests/data-files/catalogs/cbers-partial/CBERS4PAN5M/collection.json
index e88f8bb1d..7694f1e8a 100644
--- a/tests/data-files/catalogs/cbers-partial/CBERS4PAN5M/collection.json
+++ b/tests/data-files/catalogs/cbers-partial/CBERS4PAN5M/collection.json
@@ -16,8 +16,7 @@
     }
   ],
   "stac_extensions": [
-    "https://stac-extensions.github.io/eo/v1.1.0/schema.json",
-    "https://stac-extensions.github.io/item-assets/v1.0.0/schema.json"
+    "https://stac-extensions.github.io/eo/v1.1.0/schema.json"
   ],
   "providers": [
     {
diff --git a/tests/data-files/item-assets/example-landsat8.json b/tests/data-files/item-assets/example-landsat8.json
index 1390bfa7e..237f3bb92 100644
--- a/tests/data-files/item-assets/example-landsat8.json
+++ b/tests/data-files/item-assets/example-landsat8.json
@@ -1,7 +1,6 @@
 {
     "stac_version": "1.1.0",
     "stac_extensions": [
-        "https://stac-extensions.github.io/item-assets/v1.0.0/schema.json",
         "eo"
     ],
     "type": "Collection",
diff --git a/tests/data-files/table/collection-2.json b/tests/data-files/table/collection-2.json
index 39bbf5912..fcae3b117 100644
--- a/tests/data-files/table/collection-2.json
+++ b/tests/data-files/table/collection-2.json
@@ -5,7 +5,6 @@
   "description": "desc",
   "links": [],
   "stac_extensions": [
-    "https://stac-extensions.github.io/item-assets/v1.0.0/schema.json",
     "https://stac-extensions.github.io/table/v1.2.0/schema.json"
   ],
   "extent": {
diff --git a/tests/data-files/table/collection.json b/tests/data-files/table/collection.json
index 1d0006b29..6e55273cc 100644
--- a/tests/data-files/table/collection.json
+++ b/tests/data-files/table/collection.json
@@ -1,7 +1,6 @@
 {
   "stac_version": "1.1.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/item-assets/v1.0.0/schema.json",
     "https://stac-extensions.github.io/table/v1.2.0/schema.json"
   ],
   "type": "Collection",
diff --git a/tests/data-files/table/table-collection.json b/tests/data-files/table/table-collection.json
index 564d01bd6..e0877c93d 100644
--- a/tests/data-files/table/table-collection.json
+++ b/tests/data-files/table/table-collection.json
@@ -1,7 +1,6 @@
 {
   "stac_version": "1.1.0",
   "stac_extensions": [
-    "https://stac-extensions.github.io/item-assets/v1.0.0/schema.json",
     "https://stac-extensions.github.io/table/v1.2.0/schema.json"
   ],
   "type": "Collection",
diff --git a/tests/serialization/test_migrate.py b/tests/serialization/test_migrate.py
index b6346527e..ec1c59c01 100644
--- a/tests/serialization/test_migrate.py
+++ b/tests/serialization/test_migrate.py
@@ -67,7 +67,7 @@ def test_migrates_added_extension(self) -> None:
         assert view_ext.sun_elevation, 58.8
         assert view_ext.off_nadir, 1
 
-    def test_migrates_renamed_extension(self) -> None:
+    def test_migrates_removes_extension(self) -> None:
         collection = pystac.Collection.from_file(
             TestCases.get_path(
                 "data-files/examples/0.9.0/extensions/asset/"
@@ -78,7 +78,8 @@ def test_migrates_renamed_extension(self) -> None:
         assert ItemAssetsExtension.get_schema_uri() not in collection.stac_extensions
         assert not ItemAssetsExtension.has_extension(collection)
         assert "item_assets" in collection.extra_fields
-        assert collection.item_assets
+
+        assert collection.stac_extensions == []
         assert collection.item_assets["thumbnail"].title == "Thumbnail"
 
     def test_migrates_pre_1_0_0_rc1_stats_summary(self) -> None: