diff --git a/lib/livebook/session.ex b/lib/livebook/session.ex
index a94144e56..1053fa1d5 100644
--- a/lib/livebook/session.ex
+++ b/lib/livebook/session.ex
@@ -2889,34 +2889,22 @@ defmodule Livebook.Session do
   # attributes that are missing.
   defp normalize_runtime_output(output)
 
-  defp normalize_runtime_output(%{type: :input, attrs: attrs} = output)
-       when attrs.type in [:text, :textarea, :password, :number, :url, :range, :color] and
-              not is_map_key(attrs, :debounce) do
-    default =
-      case attrs.type do
-        :range -> 250
-        _other -> :blur
-      end
-
-    put_in(output.attrs[:debounce], default)
-    |> normalize_runtime_output()
-  end
-
   # Traverse composite outputs
 
-  defp normalize_runtime_output(output) when output.type in [:frame, :tabs, :grid] do
-    outputs = Enum.map(output.outputs, &normalize_runtime_output/1)
-    %{output | outputs: outputs}
-  end
+  # defp normalize_runtime_output(output) when output.type in [:frame, :tabs, :grid] do
+  #   outputs = Enum.map(output.outputs, &normalize_runtime_output/1)
+  #   %{output | outputs: outputs}
+  # end
 
-  defp normalize_runtime_output(%{type: :frame_update} = output) do
-    {update_type, new_outputs} = output.update
-    new_outputs = Enum.map(new_outputs, &normalize_runtime_output/1)
-    %{output | update: {update_type, new_outputs}}
-  end
+  # defp normalize_runtime_output(%{type: :frame_update} = output) do
+  #   {update_type, new_outputs} = output.update
+  #   new_outputs = Enum.map(new_outputs, &normalize_runtime_output/1)
+  #   %{output | update: {update_type, new_outputs}}
+  # end
 
   defp normalize_runtime_output(output) when is_map(output), do: output
 
+  # TODO: Remove this when Kino v0.10.0 is a long time in the past.
   # Rewrite tuples to maps for backward compatibility with Kino <= 0.10.0
 
   defp normalize_runtime_output(:ignored) do
@@ -3000,12 +2988,23 @@ defmodule Livebook.Session do
   end
 
   defp normalize_runtime_output({:input, attrs}) do
-    {fields, attrs} = Map.split(attrs, [:ref, :id, :destination])
+    {fields, %{type: type} = attrs} = Map.split(attrs, [:ref, :id, :destination])
 
     attrs =
-      case attrs.type do
-        :textarea -> Map.put_new(attrs, :monospace, false)
-        _other -> attrs
+      cond do
+        type in [:textarea] ->
+          attrs
+          |> Map.put_new(:monospace, false)
+          |> Map.put_new(:debounce, :blur)
+
+        type in [:text, :password, :number, :url, :color] ->
+          Map.put_new(attrs, :debounce, :blur)
+
+        type in [:range] ->
+          Map.put_new(attrs, :debounce, 250)
+
+        true ->
+          attrs
       end
 
     Map.merge(fields, %{type: :input, attrs: attrs})
diff --git a/test/livebook_web/live/app_session_live_test.exs b/test/livebook_web/live/app_session_live_test.exs
index f3a6df8df..41834096a 100644
--- a/test/livebook_web/live/app_session_live_test.exs
+++ b/test/livebook_web/live/app_session_live_test.exs
@@ -189,7 +189,7 @@ defmodule LivebookWeb.AppSessionLiveTest do
       ref: "ref1",
       id: "input1",
       destination: test,
-      attrs: %{type: :number, default: 1, label: "Name"}
+      attrs: %{type: :number, default: 1, label: "Name", debounce: :blur}
     }
 
     notebook = %{
diff --git a/test/livebook_web/live/session_live_test.exs b/test/livebook_web/live/session_live_test.exs
index 508343219..0f658536a 100644
--- a/test/livebook_web/live/session_live_test.exs
+++ b/test/livebook_web/live/session_live_test.exs
@@ -490,7 +490,7 @@ defmodule LivebookWeb.SessionLiveTest do
         ref: "ref1",
         id: "input1",
         destination: test,
-        attrs: %{type: :number, default: 1, label: "Name"}
+        attrs: %{type: :number, default: 1, label: "Name", debounce: :blur}
       }
 
       Session.subscribe(session.id)
@@ -746,7 +746,7 @@ defmodule LivebookWeb.SessionLiveTest do
         ref: "ref1",
         id: "input1",
         destination: test,
-        attrs: %{type: :number, default: 1, label: "Name"}
+        attrs: %{type: :number, default: 1, label: "Name", debounce: :blur}
       }
 
       Session.subscribe(session.id)