diff --git a/homeassistant/components/shelly/binary_sensor.py b/homeassistant/components/shelly/binary_sensor.py
index 4f771a9cc46..00f63ea7411 100644
--- a/homeassistant/components/shelly/binary_sensor.py
+++ b/homeassistant/components/shelly/binary_sensor.py
@@ -64,7 +64,10 @@ REST_SENSORS = {
         icon="mdi:update",
         default_enabled=False,
         path="update/has_update",
-        attributes={"description": "available version:", "path": "update/new_version"},
+        attributes=[
+            {"description": "latest_stable_version", "path": "update/new_version"},
+            {"description": "installed_version", "path": "update/old_version"},
+        ],
     ),
 }
 
diff --git a/homeassistant/components/shelly/entity.py b/homeassistant/components/shelly/entity.py
index d0e51e8cc12..047c3d9d66a 100644
--- a/homeassistant/components/shelly/entity.py
+++ b/homeassistant/components/shelly/entity.py
@@ -297,17 +297,20 @@ class ShellyRestAttributeEntity(update_coordinator.CoordinatorEntity):
         return f"{self.wrapper.mac}-{self.description.path}"
 
     @property
-    def device_state_attributes(self):
+    def device_state_attributes(self) -> dict:
         """Return the state attributes."""
 
         if self._attributes is None:
             return None
 
-        _description = self._attributes.get("description")
-        _attribute_value = get_rest_value_from_path(
-            self.wrapper.device.status,
-            self.description.device_class,
-            self._attributes.get("path"),
-        )
+        attributes = dict()
+        for attrib in self._attributes:
+            description = attrib.get("description")
+            attribute_value = get_rest_value_from_path(
+                self.wrapper.device.status,
+                self.description.device_class,
+                attrib.get("path"),
+            )
+            attributes[description] = attribute_value
 
-        return {_description: _attribute_value}
+        return attributes
diff --git a/homeassistant/components/shelly/utils.py b/homeassistant/components/shelly/utils.py
index 10eacff7068..c9ef3f55adb 100644
--- a/homeassistant/components/shelly/utils.py
+++ b/homeassistant/components/shelly/utils.py
@@ -85,14 +85,11 @@ def get_rest_value_from_path(status, device_class, path: str):
     """Parser for REST path from device status."""
 
     if "/" not in path:
-        _attribute_value = status[path]
+        attribute_value = status[path]
     else:
-        _attribute_value = status[path.split("/")[0]][path.split("/")[1]]
+        attribute_value = status[path.split("/")[0]][path.split("/")[1]]
     if device_class == DEVICE_CLASS_TIMESTAMP:
-        last_boot = datetime.utcnow() - timedelta(seconds=_attribute_value)
-        _attribute_value = last_boot.replace(microsecond=0).isoformat()
+        last_boot = datetime.utcnow() - timedelta(seconds=attribute_value)
+        attribute_value = last_boot.replace(microsecond=0).isoformat()
 
-    if "new_version" in path:
-        _attribute_value = _attribute_value.split("/")[1].split("@")[0]
-
-    return _attribute_value
+    return attribute_value