diff --git a/homeassistant/components/zha/core/cluster_handlers/general.py b/homeassistant/components/zha/core/cluster_handlers/general.py
index 478f41da3b7..438fc6b1723 100644
--- a/homeassistant/components/zha/core/cluster_handlers/general.py
+++ b/homeassistant/components/zha/core/cluster_handlers/general.py
@@ -553,6 +553,13 @@ class OtaClientClusterHandler(ClientClusterHandler):
         Ota.AttributeDefs.current_file_version.name: True,
     }
 
+    @callback
+    def attribute_updated(self, attrid: int, value: Any, timestamp: Any) -> None:
+        """Handle an attribute updated on this cluster."""
+        # We intentionally avoid the `ClientClusterHandler` attribute update handler:
+        # it emits a logbook event on every update, which pollutes the logbook
+        ClusterHandler.attribute_updated(self, attrid, value, timestamp)
+
     @property
     def current_file_version(self) -> int | None:
         """Return cached value of current_file_version attribute."""
diff --git a/homeassistant/components/zha/update.py b/homeassistant/components/zha/update.py
index 7ceba4fc924..0cb80d13119 100644
--- a/homeassistant/components/zha/update.py
+++ b/homeassistant/components/zha/update.py
@@ -130,14 +130,9 @@ class ZHAFirmwareUpdateEntity(
     def _get_cluster_version(self) -> str | None:
         """Synchronize current file version with the cluster."""
 
-        device = self._ota_cluster_handler._endpoint.device  # pylint: disable=protected-access
-
         if self._ota_cluster_handler.current_file_version is not None:
             return f"0x{self._ota_cluster_handler.current_file_version:08x}"
 
-        if device.sw_version is not None:
-            return device.sw_version
-
         return None
 
     @callback