diff --git a/uiautomator2/__init__.py b/uiautomator2/__init__.py
index 5d021cc..11e5ebf 100644
--- a/uiautomator2/__init__.py
+++ b/uiautomator2/__init__.py
@@ -262,7 +262,7 @@ def screenshot(self, filename: Optional[str] = None, format="pillow", display_id
             return
         return image_convert(pil_img, format)
         
-    def dump_hierarchy(self, compressed=False, pretty=False, max_depth: int = None) -> str:
+    def dump_hierarchy(self, compressed=False, pretty=False, max_depth: Optional[int] = None) -> str:
         """
         Dump window hierarchy
 
@@ -275,6 +275,8 @@ def dump_hierarchy(self, compressed=False, pretty=False, max_depth: int = None)
             xml content
         """
         try:
+            if max_depth is None:
+                max_depth = self.settings['max_depth']
             content = self._do_dump_hierarchy(compressed, max_depth)
         except HierarchyEmptyError: # pragma: no cover
             logger.warning("dump empty, return empty xml")
diff --git a/uiautomator2/assets/sync.sh b/uiautomator2/assets/sync.sh
index 99ec1d0..1739cc1 100755
--- a/uiautomator2/assets/sync.sh
+++ b/uiautomator2/assets/sync.sh
@@ -5,7 +5,7 @@ set -e
 
 APK_VERSION=$(cat ../version.py| grep apk_version | awk '{print $NF}')
 APK_VERSION=${APK_VERSION//[\"\']}
-JAR_VERSION="0.1.0"
+JAR_VERSION="0.1.2"
 
 cd "$(dirname $0)"
 
diff --git a/uiautomator2/settings.py b/uiautomator2/settings.py
index e63f4c5..cf04e4a 100644
--- a/uiautomator2/settings.py
+++ b/uiautomator2/settings.py
@@ -18,6 +18,7 @@ def __init__(self, d):
             "operation_delay": (0, 0),
             "operation_delay_methods": ["click", "swipe"],
             "fallback_to_blank_screenshot": False,
+            "max_depth": 50,
         }
 
         self._deprecated_props = {