diff --git a/README.md b/README.md
index 6d85acf..a76742e 100644
--- a/README.md
+++ b/README.md
@@ -752,6 +752,11 @@ Note: click, swipe, drag operations support percentage position values. Example:
     ```python
     # get the UI hierarchy dump content
     xml = d.dump_hierarchy()
+
+    # compressed=True: include not import nodes
+    # pretty: format xml
+    # max_depth: limit xml depth, default 50
+    xml = d.dump_hierarchy(compressed=False, pretty=False, max_depth=50)
     ```
 
 * Open notification or quick settings
diff --git a/uiautomator2/__init__.py b/uiautomator2/__init__.py
index 3c89ef5..f62f370 100644
--- a/uiautomator2/__init__.py
+++ b/uiautomator2/__init__.py
@@ -262,19 +262,20 @@ def screenshot(self, filename: Optional[str] = None, format="pillow"):
         elif format == 'raw':
             return pil_img.tobytes()
         
-    def dump_hierarchy(self, compressed=False, pretty=False) -> str:
+    def dump_hierarchy(self, compressed=False, pretty=False, max_depth: int = None) -> str:
         """
         Dump window hierarchy
 
         Args:
             compressed (bool): return compressed xml
             pretty (bool): pretty print xml
+            max_depth (int): max depth of hierarchy
 
         Returns:
             xml content
         """
         try:
-            content = self._do_dump_hierarchy(compressed)
+            content = self._do_dump_hierarchy(compressed, max_depth)
         except HierarchyEmptyError:
             logger.warning("dump empty, return empty xml")
             content = '<?xml version=\'1.0\' encoding=\'UTF-8\' standalone=\'yes\' ?>\r\n<hierarchy rotation="0" />'
@@ -285,15 +286,17 @@ def dump_hierarchy(self, compressed=False, pretty=False) -> str:
         return content
 
     @retry(HierarchyEmptyError, tries=3, delay=1)
-    def _do_dump_hierarchy(self, compressed=False) -> str:
-        content = self.jsonrpc.dumpWindowHierarchy(compressed, None)
+    def _do_dump_hierarchy(self, compressed=False, max_depth=None) -> str:
+        if max_depth is None:
+            max_depth = 50
+        content = self.jsonrpc.dumpWindowHierarchy(compressed, max_depth)
         if content == "":
             raise HierarchyEmptyError("dump hierarchy is empty")
         
         # '<?xml version=\'1.0\' encoding=\'UTF-8\' standalone=\'yes\' ?>\r\n<hierarchy rotation="0" />'
         if '<hierarchy rotation="0" />' in content:
             logger.debug("dump empty, call clear_traversed_text and retry")
-            self.clear_traversed_text()
+            # self.clear_traversed_text()
             raise HierarchyEmptyError("dump hierarchy is empty with no children")
         return content
 
diff --git a/uiautomator2/assets/sync.sh b/uiautomator2/assets/sync.sh
index 29f4454..80fc842 100755
--- a/uiautomator2/assets/sync.sh
+++ b/uiautomator2/assets/sync.sh
@@ -3,7 +3,7 @@
 
 set -e
 
-APK_VERSION="2.3.10"
+APK_VERSION="2.3.11"
 # AGENT_VERSION="0.10.1"
 
 cd "$(dirname $0)"