diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 5eb1e74a3..16ae25126 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1,9 +1,9 @@
-**Related Issue(s):** #
+**Related Issue(s):**
 
+- #
 
 **Description:**
 
-
 **PR Checklist:**
 
 - [ ] Code is formatted (run `pre-commit run --all-files`)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e45c8a8e6..8374366b5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@
 - `RetryStacIO` ([#986](https://github.com/stac-utils/pystac/pull/986))
 - `STACObject.remove_hierarchical_links` and `Link.is_hierarchical` ([#999](https://github.com/stac-utils/pystac/pull/999))
 - `extra_fields` to `AssetDefinition` in the item assets extension ([#1003](https://github.com/stac-utils/pystac/pull/1003))
+- `Catalog.fully_resolve` ([#1001](https://github.com/stac-utils/pystac/pull/1001))
 
 ### Removed
 
diff --git a/README.md b/README.md
index ac6e2fc75..4791950c2 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # PySTAC
 
-![Build Status](https://github.com/stac-utils/pystac/workflows/CI/badge.svg?branch=main)
+[![Build Status](https://github.com/stac-utils/pystac/workflows/CI/badge.svg?branch=main)](https://github.com/stac-utils/pystac/actions/workflows/continuous-integration.yml)
 [![PyPI version](https://badge.fury.io/py/pystac.svg)](https://badge.fury.io/py/pystac)
 [![Conda (channel only)](https://img.shields.io/conda/vn/conda-forge/pystac)](https://anaconda.org/conda-forge/pystac)
 [![Documentation](https://readthedocs.org/projects/pystac/badge/?version=latest)](https://pystac.readthedocs.io/en/latest/)
diff --git a/pystac/catalog.py b/pystac/catalog.py
index 40174966f..260d23bbb 100644
--- a/pystac/catalog.py
+++ b/pystac/catalog.py
@@ -911,6 +911,20 @@ def walk(
         for child in self.get_children():
             yield from child.walk()
 
+    def fully_resolve(self) -> None:
+        """Resolves every link in this catalog.
+
+        Useful if, e.g., you'd like to read a catalog from a filesystem, upgrade
+        every object in the catalog to the latest STAC version, and save it back
+        to the filesystem. By default, :py:meth:`~pystac.Catalog.save` skips
+        unresolved links.
+        """
+        for _, _, items in self.walk():
+            # items is a generator, so we need to consume it to resolve the
+            # items
+            for item in items:
+                pass
+
     def validate_all(self) -> None:
         """Validates each catalog, collection contained within this catalog.
 
diff --git a/tests/conftest.py b/tests/conftest.py
index fa525042a..58ad09162 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -25,5 +25,5 @@ def item() -> Item:
 
 
 @pytest.fixture
-def label_catalog() -> Catalog:
+def test_case_1_catalog() -> Catalog:
     return TestCases.case_1()
diff --git a/tests/test_catalog.py b/tests/test_catalog.py
index 6bf42d972..fb984ba6c 100644
--- a/tests/test_catalog.py
+++ b/tests/test_catalog.py
@@ -7,6 +7,7 @@
 from collections import defaultdict
 from copy import deepcopy
 from datetime import datetime
+from pathlib import Path
 from typing import Any, Dict, List, Optional, Tuple, Union, cast
 
 import pytest
@@ -1462,8 +1463,18 @@ def from_dict(
 
 
 @pytest.mark.parametrize("add_canonical", (True, False))
-def test_remove_hierarchical_links(label_catalog: Catalog, add_canonical: bool) -> None:
-    label_catalog.remove_hierarchical_links(add_canonical=add_canonical)
-    for link in label_catalog.links:
+def test_remove_hierarchical_links(
+    test_case_1_catalog: Catalog, add_canonical: bool
+) -> None:
+    test_case_1_catalog.remove_hierarchical_links(add_canonical=add_canonical)
+    for link in test_case_1_catalog.links:
         assert not link.is_hierarchical()
-    assert bool(label_catalog.get_single_link("canonical")) == add_canonical
+    assert bool(test_case_1_catalog.get_single_link("canonical")) == add_canonical
+
+
+def test_fully_resolve(tmp_path: Path, test_case_1_catalog: Catalog) -> None:
+    test_case_1_catalog.save(dest_href=str(tmp_path / "before"))
+    assert len(list((tmp_path / "before").glob("**/*.json"))) == 1
+    test_case_1_catalog.fully_resolve()
+    test_case_1_catalog.save(dest_href=str(tmp_path / "after"))
+    assert len(list((tmp_path / "after").glob("**/*.json"))) == 15
diff --git a/tests/test_collection.py b/tests/test_collection.py
index 8751bcb29..99a0c93f2 100644
--- a/tests/test_collection.py
+++ b/tests/test_collection.py
@@ -533,8 +533,10 @@ def from_dict(
 
 
 @pytest.mark.parametrize("add_canonical", (True, False))
-def test_remove_hierarchical_links(label_catalog: Catalog, add_canonical: bool) -> None:
-    collection = list(label_catalog.get_all_collections())[0]
+def test_remove_hierarchical_links(
+    test_case_1_catalog: Catalog, add_canonical: bool
+) -> None:
+    collection = list(test_case_1_catalog.get_all_collections())[0]
     collection.remove_hierarchical_links(add_canonical=add_canonical)
     for link in collection.links:
         assert not link.is_hierarchical()
diff --git a/tests/test_item.py b/tests/test_item.py
index 2ac7a8d2c..62d24c567 100644
--- a/tests/test_item.py
+++ b/tests/test_item.py
@@ -458,8 +458,10 @@ def test_item_from_dict_with_missing_type_raises_useful_error() -> None:
 
 
 @pytest.mark.parametrize("add_canonical", (True, False))
-def test_remove_hierarchical_links(label_catalog: Catalog, add_canonical: bool) -> None:
-    item = list(label_catalog.get_all_items())[0]
+def test_remove_hierarchical_links(
+    test_case_1_catalog: Catalog, add_canonical: bool
+) -> None:
+    item = list(test_case_1_catalog.get_all_items())[0]
     item.remove_hierarchical_links(add_canonical=add_canonical)
     for link in item.links:
         assert not link.is_hierarchical()