diff --git a/sqlite_utils/db.py b/sqlite_utils/db.py
index 549b39a..b653cc4 100644
--- a/sqlite_utils/db.py
+++ b/sqlite_utils/db.py
@@ -912,7 +912,7 @@ class Database:
             if missing_columns:
                 for col_name, col_type in missing_columns.items():
                     table.add_column(col_name, col_type)
-            if missing_columns or columns_to_drop:
+            if missing_columns or columns_to_drop or columns != existing_columns:
                 should_transform = True
             # Do we need to change the column order?
             if (
diff --git a/tests/test_create.py b/tests/test_create.py
index 03e5781..7252e48 100644
--- a/tests/test_create.py
+++ b/tests/test_create.py
@@ -1176,6 +1176,13 @@ def test_create_if_no_columns(fresh_db):
             'CREATE TABLE "demo" (\n   [id] INTEGER PRIMARY KEY,\n   [name] TEXT,\n   [age] INTEGER\n)',
             True,
         ),
+        # Change a column type
+        (
+            {"id": int, "name": bytes},
+            {"pk": "id"},
+            'CREATE TABLE "demo" (\n   [id] INTEGER PRIMARY KEY,\n   [name] BLOB\n)',
+            True,
+        ),
         # Change the primary key
         (
             {"id": int, "name": str},