diff --git a/components/colorpicker/accessibility/wai-aria-support.md b/components/colorpicker/accessibility/wai-aria-support.md
index a1c97991a7..3dbbce3330 100644
--- a/components/colorpicker/accessibility/wai-aria-support.md
+++ b/components/colorpicker/accessibility/wai-aria-support.md
@@ -38,6 +38,7 @@ The ColorPicker popup contains in itself ColorGradient, ColorPalette, a UI to sw
 |  | `tabindex=0` | The element must be focusable. |
 | `.k-invalid,.ng-invalid` | `aria-invalid=true` | Attribute is rendered only when the picker is in form and announces the valid state of the component. |
 | `.k-colorpicker.k-disabled` | `aria-disabled=true` | Attribute is rendered only when the picker is disabled. |
+| `.k-colorpicker.k-disabled .k-button` | `disabled` or `aria-disabled=true` | Attribute is rendered only when the picker is disabled. |
 
 ### ColorGradient in the Popup
 
diff --git a/components/combobox/accessibility/wai-aria-support.md b/components/combobox/accessibility/wai-aria-support.md
index 9401a8e7e6..72f74835b4 100644
--- a/components/combobox/accessibility/wai-aria-support.md
+++ b/components/combobox/accessibility/wai-aria-support.md
@@ -47,6 +47,7 @@ The following table summarizes the selectors and attributes supported by the Com
 | `.k-input-button` | `role=button` or `nodeName=button` | The element must either be a `<button>` element or must have the `role="button"` assigned. |
 |  | `aria-label` | The button element must have discernible text. |
 |  | `tabindex=-1` | The button element must not be focusable. |
+| `.k-combobox.k-disabled .k-button` | `disabled` or `aria-disabled=true` | Attribute is rendered only when the picker is disabled. |
 
 ### Popup Listbox
 
diff --git a/components/datepicker/accessibility/wai-aria-support.md b/components/datepicker/accessibility/wai-aria-support.md
index 7898b677d2..b47a3914d2 100644
--- a/components/datepicker/accessibility/wai-aria-support.md
+++ b/components/datepicker/accessibility/wai-aria-support.md
@@ -42,6 +42,7 @@ This section lists the selectors, attributes, and behavior patterns supported by
 | `.k-input-button` | `role=button` or `nodeName=button` | The element should either be a `<button>` element or should have `role="button"` assigned. |
 |  | `aria-label` | The button needs an accessible name to be assigned to it. |
 |  | `tabindex=-1` | The button element should not be focusable. |
+| `.k-datepicker.k-disabled .k-button` | `disabled` or `aria-disabled` | Attribute is rendered only when the picker is disabled. |
 
 ### Calendar Popup
 
diff --git a/components/datetimepicker/accessibility/wai-aria-support.md b/components/datetimepicker/accessibility/wai-aria-support.md
index 93f64036df..5e1f729706 100644
--- a/components/datetimepicker/accessibility/wai-aria-support.md
+++ b/components/datetimepicker/accessibility/wai-aria-support.md
@@ -42,6 +42,7 @@ This section lists the selectors, attributes, and behavior patterns supported by
 | `.k-input-button` | `role=button` or `nodeName=button` | The element should either be a `<button>` element or should have `role="button"` assigned. |
 |  | `aria-label` | The button needs an accessible name to be assigned to it. |
 |  | `tabindex=-1` | Button element should not be focusable. |
+| `.k-datetimepicker.k-disabled .k-button` | `disabled` or `aria-disabled` | Attribute is rendered only when the picker is disabled. |
 
 ### Calendar Popup
 
diff --git a/components/editor/accessibility/wai-aria-support.md b/components/editor/accessibility/wai-aria-support.md
index 103036aadb..c9ed42c6a4 100644
--- a/components/editor/accessibility/wai-aria-support.md
+++ b/components/editor/accessibility/wai-aria-support.md
@@ -27,6 +27,7 @@ This section lists the selectors, attributes, and behavior patterns supported by
 | -------- | --------- | ----- |
 | `div[contenteditable='true']` | `role=textbox` | Specifies the role of the component as text input. |
 |  | `label for` or `aria-label` or `aria-labelledby` | The component focusable element needs an accessible name to be assigned to it. |
+| `.k-editor.k-readonly div[contenteditable=false]` | `aria-readonly=true` | Attribute is rendered only when the Editor is readonly. |
 
 ## Resources
 
diff --git a/components/numerictextbox/accessibility/wai-aria-support.md b/components/numerictextbox/accessibility/wai-aria-support.md
index 470e0f5da6..77cd231274 100644
--- a/components/numerictextbox/accessibility/wai-aria-support.md
+++ b/components/numerictextbox/accessibility/wai-aria-support.md
@@ -36,6 +36,7 @@ This section lists the selectors, attributes, and behavior patterns supported by
 | `.k-disabled .k-input-inner` | `disabled=disabled` or `aria-disabled=true` | The attribute is rendered only when the NumericTextBox is disabled. |
 | `.k-spin-button>.k-button` | `role=button` or `nodeName=button` | Announces the spin button capabilities of the NumericTextBox. |
 |  | `aria-label` | The button element must have discernible text. |
+| `.k-numerictextbox.k-disabled .k-spin-button>.k-button` | `disabled` or `aria-disabled` | Attribute is rendered only when the picker is disabled. |
 
 ## Resources
 
diff --git a/components/timepicker/accessibility/wai-aria-support.md b/components/timepicker/accessibility/wai-aria-support.md
index f4b9ed5aae..d31be5b41c 100644
--- a/components/timepicker/accessibility/wai-aria-support.md
+++ b/components/timepicker/accessibility/wai-aria-support.md
@@ -40,6 +40,7 @@ This section lists the selectors, attributes, and behavior patterns supported by
 | `.k-input-button` | `role=button` or `nodeName=button` | The element must either be a `<button>` element or must have `role=button` assigned. |
 |  | `aria-label` | The button needs an accessible name to be assigned to it. |
 |  | `tabindex=-1` | Button element must not be focusable. |
+| `.k-timepicker.k-disabled .k-button` | `disabled` or `aria-disabled` | Attribute is rendered only when the picker is disabled. |
 
 ### List Elements on the Popup
 
diff --git a/src-a11y/package-lock.json b/src-a11y/package-lock.json
index 6456b4ef03..1b5418c107 100644
--- a/src-a11y/package-lock.json
+++ b/src-a11y/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "@progress/wct-a11y-spec": {
-      "version": "2.16.0",
-      "resolved": "https://registry.npmjs.org/@progress/wct-a11y-spec/-/wct-a11y-spec-2.16.0.tgz",
-      "integrity": "sha512-3UZgD6cvS+ANV6oko8G07RKmLzkCNZJXrxRjkdgg/vrJcqMah3ZQOAwT25TaNp3Gj6DEWOSlfn9CcAa4PZO86Q==",
+      "version": "2.17.0",
+      "resolved": "https://registry.npmjs.org/@progress/wct-a11y-spec/-/wct-a11y-spec-2.17.0.tgz",
+      "integrity": "sha512-pGBy/9xIAaZEuzylEu9MZ9ix5g1sgvwwK3Zpg6QiTuo1GSOafsyymQrBmx57y1ttBLWk58ooApjtcF3aUOXKlA==",
       "dev": true
     },
     "abbrev": {
diff --git a/src-a11y/package.json b/src-a11y/package.json
index 53d83c6baa..bd15ff8996 100644
--- a/src-a11y/package.json
+++ b/src-a11y/package.json
@@ -8,7 +8,7 @@
   "author": "",
   "license": "ISC",
   "devDependencies": {
-    "@progress/wct-a11y-spec": "^2.16.0",
+    "@progress/wct-a11y-spec": "^2.17.0",
     "gulp": "^4.0.2",
     "gulp-json-editor": "^2.5.6",
     "gulp-rename": "^2.0.0",