diff --git a/homeassistant/helpers/entity.py b/homeassistant/helpers/entity.py
index fb071d438b1..20948a7130a 100644
--- a/homeassistant/helpers/entity.py
+++ b/homeassistant/helpers/entity.py
@@ -1052,8 +1052,10 @@ class Entity(
         available = self.available  # only call self.available once per update cycle
         state = self._stringify_state(available)
         if available:
-            attr.update(self.state_attributes or {})
-            attr.update(self.extra_state_attributes or {})
+            if state_attributes := self.state_attributes:
+                attr.update(state_attributes)
+            if extra_state_attributes := self.extra_state_attributes:
+                attr.update(extra_state_attributes)
 
         if (unit_of_measurement := self.unit_of_measurement) is not None:
             attr[ATTR_UNIT_OF_MEASUREMENT] = unit_of_measurement