diff --git a/renumics/spotlight/app.py b/renumics/spotlight/app.py
index 8b23e08d..377c4424 100644
--- a/renumics/spotlight/app.py
+++ b/renumics/spotlight/app.py
@@ -312,6 +312,9 @@ def update(self, config: AppConfig) -> None:
             self._broadcast(RefreshMessage())
             self._update_issues()
 
+        for plugin in load_plugins():
+            plugin.update(self, config)
+
         if not self._startup_complete:
             self._startup_complete = True
             self._connection.send({"kind": "startup_complete"})
diff --git a/renumics/spotlight/data_store.py b/renumics/spotlight/data_store.py
index ed4f20cd..26a8d3e0 100644
--- a/renumics/spotlight/data_store.py
+++ b/renumics/spotlight/data_store.py
@@ -47,6 +47,10 @@ def generation_id(self) -> int:
     def column_names(self) -> List[str]:
         return self._data_source.column_names
 
+    @property
+    def data_source(self) -> DataSource:
+        return self._data_source
+
     @property
     def dtypes(self) -> DTypeMap:
         return self._dtypes
diff --git a/renumics/spotlight/plugin_loader.py b/renumics/spotlight/plugin_loader.py
index 6ebfd4e3..770c9185 100644
--- a/renumics/spotlight/plugin_loader.py
+++ b/renumics/spotlight/plugin_loader.py
@@ -7,12 +7,13 @@
 from dataclasses import dataclass
 from types import ModuleType
 from pathlib import Path
-from typing import Callable, List, Optional
+from typing import Any, Callable, List, Optional
 from fastapi import FastAPI
 
 from renumics.spotlight.settings import settings
 from renumics.spotlight.develop.project import get_project_info
 from renumics.spotlight.io.path import is_path_relative_to
+from renumics.spotlight.app_config import AppConfig
 
 import renumics.spotlight_plugins as plugins_namespace
 
@@ -28,6 +29,7 @@ class Plugin:
     module: ModuleType
     init: Callable[[], None]
     activate: Callable[[FastAPI], None]
+    update: Callable[[FastAPI, AppConfig], None]
     dev: bool
     frontend_entrypoint: Optional[Path]
 
@@ -46,14 +48,9 @@ def load_plugins() -> List[Plugin]:
     if _plugins is not None:
         return _plugins
 
-    def noinit() -> None:
+    def noop(*_args: Any, **_kwargs: Any) -> None:
         """
-        noop impl for __init__
-        """
-
-    def noactivate(_: FastAPI) -> None:
-        """
-        noop impl for __activate__
+        noop impl for plugin hooks
         """
 
     plugins = {}
@@ -73,8 +70,9 @@ def noactivate(_: FastAPI) -> None:
         plugins[name] = Plugin(
             name=name,
             priority=getattr(module, "__priority__", 1000),
-            init=getattr(module, "__register__", noinit),
-            activate=getattr(module, "__activate__", noactivate),
+            init=getattr(module, "__register__", noop),
+            activate=getattr(module, "__activate__", noop),
+            update=getattr(module, "__update__", noop),
             module=module,
             dev=dev,
             frontend_entrypoint=main_js if main_js.exists() else None,