diff --git a/pyproject.toml b/pyproject.toml
index d6b1f9b3..3196bc8b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ dynamic = ["version"]
 dependencies = [
     "requests ~= 2.31",
     "boto3 >= 1.28.80",
-    "deadline == 0.37.*",
+    "deadline == 0.38.*",
     "openjd-sessions == 0.5.*",
     # tomli became tomllib in standard library in Python 3.11
     "tomli == 2.0.* ; python_version<'3.11'",
diff --git a/src/deadline_worker_agent/sessions/session.py b/src/deadline_worker_agent/sessions/session.py
index a3360fb6..3ba3e9f2 100644
--- a/src/deadline_worker_agent/sessions/session.py
+++ b/src/deadline_worker_agent/sessions/session.py
@@ -376,7 +376,7 @@ def _cleanup(self) -> None:
         finally:
             if self._asset_sync is not None and self._job_attachment_details is not None:
                 # terminate any running virtual file systems
-                self._asset_sync.cleanup_session(  # type: ignore[attr-defined]
+                self._asset_sync.cleanup_session(
                     session_dir=self._session.working_directory,
                     file_system=self._job_attachment_details.job_attachments_file_system,
                 )