diff --git a/projects/cdk/schematics/ng-update/v4/steps/styles/index.ts b/projects/cdk/schematics/ng-update/v4/steps/styles/index.ts
index a06eca9b8ade..a9478c961edf 100644
--- a/projects/cdk/schematics/ng-update/v4/steps/styles/index.ts
+++ b/projects/cdk/schematics/ng-update/v4/steps/styles/index.ts
@@ -1,6 +1,7 @@
 /// <reference lib="es2021" />
 import {getActiveProject, saveActiveProject} from 'ng-morph';
 
+import {migrateLegacyMixins} from './migrate-legacy-mixins';
 import {migrateLessSCSSConstants} from './migrate-less-scss-constants';
 import {migrateMixins} from './migrate-mixins';
 import {migrateShadowMixins} from './migrate-shadow-mixins';
@@ -49,6 +50,7 @@ export function migrateStyles(): void {
                 migrateShadowMixins,
                 migrateLessSCSSConstants,
                 migrateMixins,
+                migrateLegacyMixins,
             ].reduce((text, migrate) => migrate(text), fullText);
 
             sourceFile.replaceWithText(newFileContent);
diff --git a/projects/cdk/schematics/ng-update/v4/steps/styles/migrate-legacy-mixins.ts b/projects/cdk/schematics/ng-update/v4/steps/styles/migrate-legacy-mixins.ts
new file mode 100644
index 000000000000..c29808725046
--- /dev/null
+++ b/projects/cdk/schematics/ng-update/v4/steps/styles/migrate-legacy-mixins.ts
@@ -0,0 +1,34 @@
+const LEGACY_MIXINS = [
+    'clearfix',
+    'autofill',
+    'clearinput',
+    'visually-hidden',
+    'webkit-auto-fill-button-hidden',
+    'customize-scroll',
+    'inset-border',
+    'dashed-border',
+    'opacity-icon',
+    'hoverable-with-shadow',
+    'text-overflow-with-fade',
+    'contrast-background',
+    'blurred-background',
+    'textfield-host',
+    'textfield-content',
+    'textfield-input',
+    'textfield-wrapper',
+    'textfield-label',
+    'input-icon',
+    'input-icons',
+    'icon-button',
+    'textfield',
+];
+
+export function migrateLegacyMixins(fileContent: string): string {
+    if (!fileContent.includes('@taiga-ui/core/styles/taiga-ui-local')) {
+        return fileContent;
+    }
+
+    return LEGACY_MIXINS.some((x) => fileContent.includes(x))
+        ? `@import '@taiga-ui/legacy/styles/taiga-ui-local';\n${fileContent}`
+        : fileContent;
+}
diff --git a/projects/cdk/schematics/ng-update/v4/tests/schematic-migrate-styles.spec.ts b/projects/cdk/schematics/ng-update/v4/tests/schematic-migrate-styles.spec.ts
index 42bd3e642eb0..b2545ae28acf 100644
--- a/projects/cdk/schematics/ng-update/v4/tests/schematic-migrate-styles.spec.ts
+++ b/projects/cdk/schematics/ng-update/v4/tests/schematic-migrate-styles.spec.ts
@@ -32,6 +32,7 @@ const STYLES_BEFORE = `
     .text-overflow();
     .tui-space(vertical, 4);
     .text-h3();
+    .customize-scroll();
     padding-top: @space * 2;
 }
 
@@ -57,7 +58,8 @@ const STYLES_BEFORE = `
 }
 `;
 
-const STYLES_AFTER = `
+const STYLES_AFTER = `@import '@taiga-ui/legacy/styles/taiga-ui-local';
+
 @import '@taiga-ui/proprietary/styles/tbank-fonts';
 @import '@taiga-ui/core/styles/taiga-ui-local.less';
 
@@ -79,6 +81,7 @@ const STYLES_AFTER = `
     margin-top: 1rem;
 margin-bottom: 1rem;
     font: var(--tui-font-heading-3);
+    .customize-scroll();
     padding-top: 0.25rem * 2;
 }