diff --git a/debian/patches/99_dulwich_pack_with_dfs.patch b/debian/patches/99_dulwich_pack_with_dfs.patch
deleted file mode 100644
index cf6ad766..00000000
--- a/debian/patches/99_dulwich_pack_with_dfs.patch
+++ /dev/null
@@ -1,73 +0,0 @@
-Index: dulwich/dulwich/pack.py
-===================================================================
---- dulwich.orig/dulwich/pack.py
-+++ dulwich/dulwich/pack.py
-@@ -1439,7 +1439,8 @@ class DeltaChainIterator(object):
-         # Unlike PackData.get_object_at, there is no need to cache offsets as
-         # this approach by design inflates each object exactly once.
-         todo = [(offset, obj_type_num, base_chunks)]
--        for offset, obj_type_num, base_chunks in todo:
-+        while todo:
-+            (offset, obj_type_num, base_chunks) = todo.pop()
-             unpacked = self._resolve_object(offset, obj_type_num, base_chunks)
-             yield self._result(unpacked)
- 
-Index: dulwich/dulwich/tests/test_pack.py
-===================================================================
---- dulwich.orig/dulwich/tests/test_pack.py
-+++ dulwich/dulwich/tests/test_pack.py
-@@ -1032,7 +1032,8 @@ class DeltaChainIteratorTests(TestCase):
-                 (OFS_DELTA, (0, b"blob2")),
-             ],
-         )
--        self.assertEntriesMatch([0, 1, 2], entries, self.make_pack_iter(f))
-+        # Delta resolution changed to DFS
-+        self.assertEntriesMatch([0, 2, 1], entries, self.make_pack_iter(f))
- 
-     def test_ofs_deltas_chain(self):
-         f = BytesIO()
-@@ -1056,7 +1057,8 @@ class DeltaChainIteratorTests(TestCase):
-                 (REF_DELTA, (1, b"blob2")),
-             ],
-         )
--        self.assertEntriesMatch([1, 0, 2], entries, self.make_pack_iter(f))
-+        # Delta resolution changed to DFS
-+        self.assertEntriesMatch([1, 2, 0], entries, self.make_pack_iter(f))
- 
-     def test_ref_deltas_chain(self):
-         f = BytesIO()
-@@ -1082,7 +1084,9 @@ class DeltaChainIteratorTests(TestCase):
-                 (OFS_DELTA, (1, b"blob2")),
-             ],
-         )
--        self.assertEntriesMatch([1, 2, 0], entries, self.make_pack_iter(f))
-+
-+        # Delta resolution changed to DFS
-+        self.assertEntriesMatch([1, 0, 2], entries, self.make_pack_iter(f))
- 
-     def test_mixed_chain(self):
-         f = BytesIO()
-@@ -1094,9 +1098,9 @@ class DeltaChainIteratorTests(TestCase):
-                 (OFS_DELTA, (0, b"blob1")),
-                 (OFS_DELTA, (1, b"blob3")),
-                 (OFS_DELTA, (0, b"bob")),
--            ],
--        )
--        self.assertEntriesMatch([0, 2, 4, 1, 3], entries, self.make_pack_iter(f))
-+            ])
-+        # Delta resolution changed to DFS
-+        self.assertEntriesMatch([0, 4, 2, 1, 3], entries, self.make_pack_iter(f))
- 
-     def test_long_chain(self):
-         n = 100
-@@ -1114,7 +1118,9 @@ class DeltaChainIteratorTests(TestCase):
-             objects_spec.append((OFS_DELTA, (0, b"blob" + str(i).encode("ascii"))))
-         f = BytesIO()
-         entries = build_pack(f, objects_spec)
--        self.assertEntriesMatch(range(n + 1), entries, self.make_pack_iter(f))
-+        # Delta resolution changed to DFS
-+        indices = [0] + list(range(100, 0, -1))
-+        self.assertEntriesMatch(indices, entries, self.make_pack_iter(f))
- 
-     def test_ext_ref(self):
-         (blob,) = self.store_blobs([b"blob"])
diff --git a/debian/patches/series b/debian/patches/series
index b3f9bc8d..dc5f35fd 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -1,3 +1,3 @@
 02_skip_flappy_test
 disable-tcp-client-test.diff
-99_dulwich_pack_with_dfs.patch
+