diff --git a/doc/rule-descriptions.md b/doc/rule-descriptions.md
index 5d07572a1e..add63dc3c8 100644
--- a/doc/rule-descriptions.md
+++ b/doc/rule-descriptions.md
@@ -17,7 +17,7 @@
 | aria-valid-attr                     | Ensures attributes that begin with aria- are valid ARIA attributes                                                         | Critical           | cat.aria, wcag2a, wcag412                                                    | true               |
 | audio-caption                       | Ensures <audio> elements have captions                                                                               | Critical           | cat.time-and-media, wcag2a, wcag121, section508, section508.22.a             | false              |
 | autocomplete-valid                  | Ensure the autocomplete attribute is correct and suitable for the form field                                               | Serious            | cat.forms, wcag21aa, wcag135                                                 | true               |
-| avoid-inline-spacing                | Ensure that text spacing set through style attributes can be adjusted with custom stylesheets                              | Serious            | wcag21, wcag1412                                                             | true               |
+| avoid-inline-spacing                | Ensure that text spacing set through style attributes can be adjusted with custom stylesheets                              | Serious            | wcag21aa, wcag1412                                                           | true               |
 | blink                               | Ensures <blink> elements are not used                                                                                | Serious            | cat.time-and-media, wcag2a, wcag222, section508, section508.22.j             | true               |
 | button-name                         | Ensures buttons have discernible text                                                                                      | Critical           | cat.name-role-value, wcag2a, wcag412, section508, section508.22.a            | true               |
 | bypass                              | Ensures each page has at least one mechanism for a user to bypass navigation and jump straight to the content              | Serious            | cat.keyboard, wcag2a, wcag241, section508, section508.22.o                   | true               |
diff --git a/lib/rules/avoid-inline-spacing.json b/lib/rules/avoid-inline-spacing.json
index 95e8a5d46e..5c55631b1e 100644
--- a/lib/rules/avoid-inline-spacing.json
+++ b/lib/rules/avoid-inline-spacing.json
@@ -1,7 +1,7 @@
 {
 	"id": "avoid-inline-spacing",
 	"selector": "[style]",
-	"tags": ["wcag21", "wcag1412"],
+	"tags": ["wcag21aa", "wcag1412"],
 	"metadata": {
 		"description": "Ensure that text spacing set through style attributes can be adjusted with custom stylesheets",
 		"help": "Inline text spacing must be adjustable with custom stylesheets"