diff --git a/packages/e2e-tests/fixtures/blocks/core__table.html b/packages/e2e-tests/fixtures/blocks/core__table.html
index b9b41659e835aa..4a5175c4c07d41 100644
--- a/packages/e2e-tests/fixtures/blocks/core__table.html
+++ b/packages/e2e-tests/fixtures/blocks/core__table.html
@@ -1,3 +1,3 @@
-<!-- wp:core/table -->
-<table class="wp-block-table"><thead><tr><th>Version</th><th>Musician</th><th>Date</th></tr></thead><tbody><tr><td><a href="https://wordpress.org/news/2003/05/wordpress-now-available/">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href="https://wordpress.org/news/2004/01/wordpress-10/">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href="https://codex.wordpress.org/WordPress_Versions">the full list</a></td><td>&hellip;</td><td>&hellip;</td></tr><tr><td><a href="https://wordpress.org/news/2015/12/clifford/">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href="https://wordpress.org/news/2016/04/coleman/">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href="https://wordpress.org/news/2016/08/pepper/">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href="https://wordpress.org/news/2016/12/vaughan/">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>
-<!-- /wp:core/table -->
+<!-- wp:table -->
+<table class="wp-block-table"><thead><tr><th scope="col">Version</th><th scope="col">Musician</th><th scope="col">Date</th></tr></thead><tbody><tr><td><a href="https://wordpress.org/news/2003/05/wordpress-now-available/">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href="https://wordpress.org/news/2004/01/wordpress-10/">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href="https://codex.wordpress.org/WordPress_Versions">the full list</a></td><td>…</td><td>…</td></tr><tr><td><a href="https://wordpress.org/news/2015/12/clifford/">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href="https://wordpress.org/news/2016/04/coleman/">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href="https://wordpress.org/news/2016/08/pepper/">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href="https://wordpress.org/news/2016/12/vaughan/">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>
+<!-- /wp:table -->
diff --git a/packages/e2e-tests/fixtures/blocks/core__table.json b/packages/e2e-tests/fixtures/blocks/core__table.json
index 7d71d09c53be82..96e101aa0264c9 100644
--- a/packages/e2e-tests/fixtures/blocks/core__table.json
+++ b/packages/e2e-tests/fixtures/blocks/core__table.json
@@ -10,15 +10,18 @@
                     "cells": [
                         {
                             "content": "Version",
-                            "tag": "th"
+                            "tag": "th",
+                            "scope": "col"
                         },
                         {
                             "content": "Musician",
-                            "tag": "th"
+                            "tag": "th",
+                            "scope": "col"
                         },
                         {
                             "content": "Date",
-                            "tag": "th"
+                            "tag": "th",
+                            "scope": "col"
                         }
                     ]
                 }
@@ -140,6 +143,6 @@
             "foot": []
         },
         "innerBlocks": [],
-        "originalContent": "<table class=\"wp-block-table\"><thead><tr><th>Version</th><th>Musician</th><th>Date</th></tr></thead><tbody><tr><td><a href=\"https://wordpress.org/news/2003/05/wordpress-now-available/\">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href=\"https://wordpress.org/news/2004/01/wordpress-10/\">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href=\"https://codex.wordpress.org/WordPress_Versions\">the full list</a></td><td>&hellip;</td><td>&hellip;</td></tr><tr><td><a href=\"https://wordpress.org/news/2015/12/clifford/\">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/04/coleman/\">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/08/pepper/\">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/12/vaughan/\">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>"
+        "originalContent": "<table class=\"wp-block-table\"><thead><tr><th scope=\"col\">Version</th><th scope=\"col\">Musician</th><th scope=\"col\">Date</th></tr></thead><tbody><tr><td><a href=\"https://wordpress.org/news/2003/05/wordpress-now-available/\">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href=\"https://wordpress.org/news/2004/01/wordpress-10/\">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href=\"https://codex.wordpress.org/WordPress_Versions\">the full list</a></td><td>…</td><td>…</td></tr><tr><td><a href=\"https://wordpress.org/news/2015/12/clifford/\">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/04/coleman/\">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/08/pepper/\">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/12/vaughan/\">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>"
     }
 ]
diff --git a/packages/e2e-tests/fixtures/blocks/core__table.parsed.json b/packages/e2e-tests/fixtures/blocks/core__table.parsed.json
index 5462dae3908a8c..e8410b63327af8 100644
--- a/packages/e2e-tests/fixtures/blocks/core__table.parsed.json
+++ b/packages/e2e-tests/fixtures/blocks/core__table.parsed.json
@@ -3,9 +3,9 @@
         "blockName": "core/table",
         "attrs": {},
         "innerBlocks": [],
-        "innerHTML": "\n<table class=\"wp-block-table\"><thead><tr><th>Version</th><th>Musician</th><th>Date</th></tr></thead><tbody><tr><td><a href=\"https://wordpress.org/news/2003/05/wordpress-now-available/\">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href=\"https://wordpress.org/news/2004/01/wordpress-10/\">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href=\"https://codex.wordpress.org/WordPress_Versions\">the full list</a></td><td>&hellip;</td><td>&hellip;</td></tr><tr><td><a href=\"https://wordpress.org/news/2015/12/clifford/\">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/04/coleman/\">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/08/pepper/\">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/12/vaughan/\">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>\n",
+        "innerHTML": "\n<table class=\"wp-block-table\"><thead><tr><th scope=\"col\">Version</th><th scope=\"col\">Musician</th><th scope=\"col\">Date</th></tr></thead><tbody><tr><td><a href=\"https://wordpress.org/news/2003/05/wordpress-now-available/\">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href=\"https://wordpress.org/news/2004/01/wordpress-10/\">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href=\"https://codex.wordpress.org/WordPress_Versions\">the full list</a></td><td>…</td><td>…</td></tr><tr><td><a href=\"https://wordpress.org/news/2015/12/clifford/\">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/04/coleman/\">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/08/pepper/\">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/12/vaughan/\">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>\n",
         "innerContent": [
-            "\n<table class=\"wp-block-table\"><thead><tr><th>Version</th><th>Musician</th><th>Date</th></tr></thead><tbody><tr><td><a href=\"https://wordpress.org/news/2003/05/wordpress-now-available/\">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href=\"https://wordpress.org/news/2004/01/wordpress-10/\">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href=\"https://codex.wordpress.org/WordPress_Versions\">the full list</a></td><td>&hellip;</td><td>&hellip;</td></tr><tr><td><a href=\"https://wordpress.org/news/2015/12/clifford/\">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/04/coleman/\">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/08/pepper/\">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/12/vaughan/\">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>\n"
+            "\n<table class=\"wp-block-table\"><thead><tr><th scope=\"col\">Version</th><th scope=\"col\">Musician</th><th scope=\"col\">Date</th></tr></thead><tbody><tr><td><a href=\"https://wordpress.org/news/2003/05/wordpress-now-available/\">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href=\"https://wordpress.org/news/2004/01/wordpress-10/\">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href=\"https://codex.wordpress.org/WordPress_Versions\">the full list</a></td><td>…</td><td>…</td></tr><tr><td><a href=\"https://wordpress.org/news/2015/12/clifford/\">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/04/coleman/\">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/08/pepper/\">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href=\"https://wordpress.org/news/2016/12/vaughan/\">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>\n"
         ]
     },
     {
diff --git a/packages/e2e-tests/fixtures/blocks/core__table.serialized.html b/packages/e2e-tests/fixtures/blocks/core__table.serialized.html
index a791eb149f6273..4a5175c4c07d41 100644
--- a/packages/e2e-tests/fixtures/blocks/core__table.serialized.html
+++ b/packages/e2e-tests/fixtures/blocks/core__table.serialized.html
@@ -1,3 +1,3 @@
 <!-- wp:table -->
-<table class="wp-block-table"><thead><tr><th>Version</th><th>Musician</th><th>Date</th></tr></thead><tbody><tr><td><a href="https://wordpress.org/news/2003/05/wordpress-now-available/">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href="https://wordpress.org/news/2004/01/wordpress-10/">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href="https://codex.wordpress.org/WordPress_Versions">the full list</a></td><td>…</td><td>…</td></tr><tr><td><a href="https://wordpress.org/news/2015/12/clifford/">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href="https://wordpress.org/news/2016/04/coleman/">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href="https://wordpress.org/news/2016/08/pepper/">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href="https://wordpress.org/news/2016/12/vaughan/">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>
+<table class="wp-block-table"><thead><tr><th scope="col">Version</th><th scope="col">Musician</th><th scope="col">Date</th></tr></thead><tbody><tr><td><a href="https://wordpress.org/news/2003/05/wordpress-now-available/">.70</a></td><td>No musician chosen.</td><td>May 27, 2003</td></tr><tr><td><a href="https://wordpress.org/news/2004/01/wordpress-10/">1.0</a></td><td>Miles Davis</td><td>January 3, 2004</td></tr><tr><td>Lots of versions skipped, see <a href="https://codex.wordpress.org/WordPress_Versions">the full list</a></td><td>…</td><td>…</td></tr><tr><td><a href="https://wordpress.org/news/2015/12/clifford/">4.4</a></td><td>Clifford Brown</td><td>December 8, 2015</td></tr><tr><td><a href="https://wordpress.org/news/2016/04/coleman/">4.5</a></td><td>Coleman Hawkins</td><td>April 12, 2016</td></tr><tr><td><a href="https://wordpress.org/news/2016/08/pepper/">4.6</a></td><td>Pepper Adams</td><td>August 16, 2016</td></tr><tr><td><a href="https://wordpress.org/news/2016/12/vaughan/">4.7</a></td><td>Sarah Vaughan</td><td>December 6, 2016</td></tr></tbody></table>
 <!-- /wp:table -->