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 8f0b39964a6d..a06eca9b8ade 100644
--- a/projects/cdk/schematics/ng-update/v4/steps/styles/index.ts
+++ b/projects/cdk/schematics/ng-update/v4/steps/styles/index.ts
@@ -2,7 +2,7 @@
 import {getActiveProject, saveActiveProject} from 'ng-morph';
 
 import {migrateLessSCSSConstants} from './migrate-less-scss-constants';
-import {migrateScrollbarBehavior} from './migrate-scrollbar-behavior';
+import {migrateMixins} from './migrate-mixins';
 import {migrateShadowMixins} from './migrate-shadow-mixins';
 import {migrateSpaceMixins} from './migrate-space-mixins';
 import {migrateTextMixins} from './migrate-text-mixins';
@@ -48,7 +48,7 @@ export function migrateStyles(): void {
                 migrateTextMixins,
                 migrateShadowMixins,
                 migrateLessSCSSConstants,
-                migrateScrollbarBehavior,
+                migrateMixins,
             ].reduce((text, migrate) => migrate(text), fullText);
 
             sourceFile.replaceWithText(newFileContent);
diff --git a/projects/cdk/schematics/ng-update/v4/steps/styles/migrate-mixins.ts b/projects/cdk/schematics/ng-update/v4/steps/styles/migrate-mixins.ts
new file mode 100644
index 000000000000..f59c6c101f28
--- /dev/null
+++ b/projects/cdk/schematics/ng-update/v4/steps/styles/migrate-mixins.ts
@@ -0,0 +1,23 @@
+const MAPPING = {
+    createStackingContext: ['isolation: isolate'],
+    'scroll-behavior': ['scroll-behavior: var(--tui-scroll-behavior)'],
+};
+
+export function migrateMixins(fileContent: string): string {
+    if (!fileContent.includes('@taiga-ui/core/styles/taiga-ui-local')) {
+        return fileContent;
+    }
+
+    return Object.keys(MAPPING).reduce((file, outdatedMixin) => {
+        const MIXIN_RE = new RegExp(
+            String.raw`(?:@include\s|\.)(${outdatedMixin})\(\)(\s?!important)?;`,
+            'g',
+        );
+
+        return file.replaceAll(
+            MIXIN_RE,
+            (_, mixinName: keyof typeof MAPPING, important = '') =>
+                `${MAPPING[mixinName].map((newValue) => `${newValue}${important};`).join('\n')}`,
+        );
+    }, fileContent);
+}
diff --git a/projects/cdk/schematics/ng-update/v4/steps/styles/migrate-scrollbar-behavior.ts b/projects/cdk/schematics/ng-update/v4/steps/styles/migrate-scrollbar-behavior.ts
deleted file mode 100644
index f765531aa7a7..000000000000
--- a/projects/cdk/schematics/ng-update/v4/steps/styles/migrate-scrollbar-behavior.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-export function migrateScrollbarBehavior(fileContent: string): string {
-    if (!fileContent.includes('@taiga-ui/core/styles/taiga-ui-local')) {
-        return fileContent;
-    }
-
-    return fileContent.replaceAll(
-        '.scroll-behavior()',
-        'scroll-behavior: var(--tui-scroll-behavior)',
-    );
-}
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 201e8f810424..42bd3e642eb0 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
@@ -39,11 +39,13 @@ const STYLES_BEFORE = `
     .tui-space(horizontal, -4);
     .text-body-m-bold(1);
     .shadow(3);
+    .createStackingContext() !important;
 }
 
 .hack {
     .tui-space(top, 0) !important;
     .tui-space(horizontal, -4) !important;
+    .createStackingContext();
 }
 
 .t-scrollbar {
@@ -85,12 +87,14 @@ margin-bottom: 1rem;
 margin-right: -1rem;
     .text-body-m-bold(1); // TODO: this mixin was deleted. Replace it with inline styles. Find it source code in https://github.com/taiga-family/taiga-ui/blob/v3.x/projects/core/styles/mixins/text.less
     box-shadow: var(--tui-shadow-popup);
+    isolation: isolate !important;
 }
 
 .hack {
     margin-top: 0rem !important;
     margin-left: -1rem !important;
 margin-right: -1rem !important;
+    isolation: isolate;
 }
 
 .t-scrollbar {