diff --git a/src/widget.tsx b/src/widget.tsx
index 1507cd0..d3714b5 100644
--- a/src/widget.tsx
+++ b/src/widget.tsx
@@ -73,9 +73,9 @@ function provideModule(moduleName: string, module: any) {
 }
 
 function invalidateModule(moduleName: string) {
-  // next requestModule waits for a fresh provideModule (hot reload); called
-  // synchronously on change:code so consumers created after the update never
-  // see the stale module
+  // Next requestModule waits for a fresh provideModule. This is called
+  // synchronously for both replacement models and trait updates so consumers
+  // created during hot reload never see the stale module.
   delete modules[moduleName];
   delete moduleFunctions[moduleName];
 }
@@ -315,6 +315,10 @@ export class Module extends WidgetModel {
   }
   initialize(attributes: any, options: any): void {
     super.initialize(attributes, options);
+    // A kernel restart replaces the old Module model instead of updating its
+    // code trait. Invalidate synchronously so consumers created alongside the
+    // replacement wait for this model rather than using the cached module.
+    invalidateModule(this.get("name"));
     this.addModule();
     // hot reload: re-import when the kernel ships new module code
     this.on("change:code change:url change:dependencies", () => {
diff --git a/tests/ui/module_hot_reload_test.py b/tests/ui/module_hot_reload_test.py
index e9a159b..05b0825 100644
--- a/tests/ui/module_hot_reload_test.py
+++ b/tests/ui/module_hot_reload_test.py
@@ -24,3 +24,24 @@ def test_module_code_hot_reload(solara_test, page_session: playwright.sync_api.P
     ipyreact.define_module("hot-reload-module", code_template % 2)
     display(ipyreact.ValueWidget(_module="hot-reload-module", _type="Label"))
     page_session.locator(".hot-widget >> text=version 2").wait_for()
+
+
+def test_module_recreated_widget_hot_reload(solara_test, page_session: playwright.sync_api.Page):
+    # A *new* module widget for a name that is already registered must win
+    # over the module the registry still holds. Solara closes the per-kernel
+    # module widgets on a hot reload (a trait update on a closed widget never
+    # reaches the browser) and creates fresh ones, so without invalidating,
+    # consumers rendered afterwards keep resolving the previous module.
+    from solara.server import esm, kernel_context
+
+    ipyreact.define_module("recreate-module", code_template % 1)
+    display(ipyreact.ValueWidget(_module="recreate-module", _type="Label"))
+    page_session.locator(".hot-widget >> text=version 1").wait_for()
+
+    # what context.restart() does to the module widgets on a hot reload
+    kernel_id = kernel_context.get_current_context().id
+    esm._modules_added_per_kernel[kernel_id]["recreate-module"].close()
+
+    ipyreact.define_module("recreate-module", code_template % 2)
+    display(ipyreact.ValueWidget(_module="recreate-module", _type="Label"))
+    page_session.locator(".hot-widget >> text=version 2").wait_for()