diff --git a/CHANGELOG.md b/CHANGELOG.md
index c91d5776cdd8..3aea09d4b71a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Implement the `supports` variant ([#9453](https://github.com/tailwindlabs/tailwindcss/pull/9453))
 - Add experimental `label`s for variants ([#9456](https://github.com/tailwindlabs/tailwindcss/pull/9456))
 - Added 'place-content-baseline' utility ([#9498](https://github.com/tailwindlabs/tailwindcss/pull/9498))
+- Added 'place-items-baseline' utility ([#9507](https://github.com/tailwindlabs/tailwindcss/pull/9507))
+- Added 'content-baseline' utility ([#9507](https://github.com/tailwindlabs/tailwindcss/pull/9507))
 
 ### Fixed
 
diff --git a/src/corePlugins.js b/src/corePlugins.js
index 0e1f28fcbaea..e78940f0cfdf 100644
--- a/src/corePlugins.js
+++ b/src/corePlugins.js
@@ -990,6 +990,7 @@ export let corePlugins = {
       '.place-items-start': { 'place-items': 'start' },
       '.place-items-end': { 'place-items': 'end' },
       '.place-items-center': { 'place-items': 'center' },
+      '.place-items-baseline': { 'place-items': 'baseline' },
       '.place-items-stretch': { 'place-items': 'stretch' },
     })
   },
@@ -1002,6 +1003,7 @@ export let corePlugins = {
       '.content-between': { 'align-content': 'space-between' },
       '.content-around': { 'align-content': 'space-around' },
       '.content-evenly': { 'align-content': 'space-evenly' },
+      '.content-baseline': { 'align-content': 'baseline' },
     })
   },