diff --git a/poetry.lock b/poetry.lock
index 54a1753..f579742 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1031,13 +1031,13 @@ files = [
 
 [[package]]
 name = "pytest"
-version = "8.3.3"
+version = "8.3.4"
 description = "pytest: simple powerful testing with Python"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "pytest-8.3.3-py3-none-any.whl", hash = "sha256:a6853c7375b2663155079443d2e45de913a911a11d669df02a50814944db57b2"},
-    {file = "pytest-8.3.3.tar.gz", hash = "sha256:70b98107bd648308a7952b06e6ca9a50bc660be218d53c257cc1fc94fda10181"},
+    {file = "pytest-8.3.4-py3-none-any.whl", hash = "sha256:50e16d954148559c9a74109af1eaf0c945ba2d8f30f0a3d3335edde19788b6f6"},
+    {file = "pytest-8.3.4.tar.gz", hash = "sha256:965370d062bce11e73868e0335abac31b4d3de0e82f4007408d242b4f8610761"},
 ]
 
 [package.dependencies]
diff --git a/poetry_monoranger_plugin/path_rewriter.py b/poetry_monoranger_plugin/path_rewriter.py
index d41b4a7..70cc51e 100644
--- a/poetry_monoranger_plugin/path_rewriter.py
+++ b/poetry_monoranger_plugin/path_rewriter.py
@@ -97,4 +97,10 @@ def _pin_dependency(self, poetry: Poetry, dependency: DirectoryDependency):
         else:
             raise ValueError(f"Invalid version rewrite rule: {self.plugin_conf.version_rewrite_rule}")
 
-        return Dependency(name, pinned_version, groups=dependency.groups)
+        return Dependency(
+            name,
+            pinned_version,
+            groups=dependency.groups,
+            optional=dependency.is_optional(),
+            extras=dependency.extras,
+        )
diff --git a/tests/conftest.py b/tests/conftest.py
index 777b0ce..a378594 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -3,7 +3,7 @@
 
 import pytest
 from poetry.core.packages.dependency import Dependency
-from poetry.core.packages.dependency_group import DependencyGroup
+from poetry.core.packages.dependency_group import MAIN_GROUP, DependencyGroup
 from poetry.core.packages.directory_dependency import DirectoryDependency
 from poetry.poetry import Poetry
 
@@ -15,9 +15,17 @@ def mock_event_gen():
     def _factory(command_cls: type[Command], disable_cache: bool):
         from cleo.events.console_command_event import ConsoleCommandEvent
 
-        main_grp = DependencyGroup("main")
-        main_grp.add_dependency(DirectoryDependency("packageB", Path("../packageB"), develop=True))
+        main_grp = DependencyGroup(MAIN_GROUP)
         main_grp.add_dependency(Dependency("numpy", "==1.5.0"))
+        main_grp.add_dependency(
+            DirectoryDependency(
+                "packageB",
+                Path("../packageB"),
+                develop=True,
+                optional=True,
+                extras=["fast"],
+            )
+        )
 
         mock_command = Mock(spec=command_cls)
         mock_command.poetry = Mock(spec=Poetry)
diff --git a/tests/test_path_rewriter.py b/tests/test_path_rewriter.py
index 61e31f9..6d0afff 100644
--- a/tests/test_path_rewriter.py
+++ b/tests/test_path_rewriter.py
@@ -35,6 +35,8 @@ def test_executes_path_rewriting_for_build_command(mock_event_gen, disable_cache
     new_dependencies = sorted(new_dependencies.dependencies, key=lambda x: x.name)
     for i, dep in enumerate(new_dependencies):
         assert dep.name == original_dependencies[i].name
+        assert dep.is_optional() == original_dependencies[i].is_optional()
+        assert dep.extras == original_dependencies[i].extras
         if isinstance(original_dependencies[i], DirectoryDependency):
             assert dep.pretty_constraint == "0.1.0"
         else: