diff --git a/python/pyspark/sql/functions/builtin.py b/python/pyspark/sql/functions/builtin.py
index bca4704962f96..ccb2ce8866ef3 100644
--- a/python/pyspark/sql/functions/builtin.py
+++ b/python/pyspark/sql/functions/builtin.py
@@ -11709,7 +11709,7 @@ def unix_date(col: "ColumnOrName") -> Column:
 
 @_try_remote_functions
 def unix_micros(col: "ColumnOrName") -> Column:
-    """Returns the number of microseconds since 1970-01-01 00:00:00 UTC.
+    """Returns the number of microseconds since 1970-01-01 00:00:00 UTC. Truncates higher levels of precision.
 
     .. versionadded:: 3.5.0