diff --git a/package-lock.json b/package-lock.json
index 5886b86fd1332e..eda7953c1621dc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -49574,6 +49574,7 @@
 			"license": "GPL-2.0-or-later",
 			"dependencies": {
 				"@wordpress/api-fetch": "file:../api-fetch",
+				"@wordpress/base-styles": "file:../base-styles",
 				"@wordpress/block-editor": "file:../block-editor",
 				"@wordpress/blocks": "file:../blocks",
 				"@wordpress/components": "file:../components",
diff --git a/packages/core-data/CHANGELOG.md b/packages/core-data/CHANGELOG.md
index 167e620c0173cf..376a4cd6141bf0 100644
--- a/packages/core-data/CHANGELOG.md
+++ b/packages/core-data/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Internal
 
 -   Update `memize` to 2.1.1 ([#80764](https://github.com/WordPress/gutenberg/pull/80764)).
+-   Add missing `@wordpress/base-styles` dependency ([#81012](https://github.com/WordPress/gutenberg/pull/81012)).
 
 ## 7.51.0 (2026-07-14)
 
diff --git a/packages/core-data/package.json b/packages/core-data/package.json
index 1b5914dec5b70f..f7991866b860b9 100644
--- a/packages/core-data/package.json
+++ b/packages/core-data/package.json
@@ -49,6 +49,7 @@
 	],
 	"dependencies": {
 		"@wordpress/api-fetch": "file:../api-fetch",
+		"@wordpress/base-styles": "file:../base-styles",
 		"@wordpress/block-editor": "file:../block-editor",
 		"@wordpress/blocks": "file:../blocks",
 		"@wordpress/components": "file:../components",