diff --git a/CHANGELOG.md b/CHANGELOG.md
index e43a816..c180ca7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Changelog
 
 ## [Unreleased]
+### HTML spec
+- Add the `alpha` and `colorspace` attributes to the `input` element.
 
 ## [0.4.5] - 2024-09-30
 ### Changed
diff --git a/domify/html_elements.py b/domify/html_elements.py
index 9df3b42..a7fc249 100644
--- a/domify/html_elements.py
+++ b/domify/html_elements.py
@@ -629,9 +629,11 @@ class Input(HtmlElement):
     is_empty = True
     element_attributes = {
         "accept": v.attribute_str,
+        "alpha": v.attribute_bool,
         "alt": v.attribute_str,
         "autocomplete": v.attribute_str,
         "checked": v.attribute_bool,
+        "colorspace": {"limited-srgb", "display-p3"},
         "dirname": v.attribute_str,
         "disabled": v.attribute_bool,
         "form": v.attribute_str,