diff --git a/.changeset/smart-turkeys-fold.md b/.changeset/smart-turkeys-fold.md
new file mode 100644
index 00000000..9d309a6e
--- /dev/null
+++ b/.changeset/smart-turkeys-fold.md
@@ -0,0 +1,5 @@
+---
+"svelte-eslint-parser": patch
+---
+
+fix: update postcss to 8.4.28
diff --git a/package.json b/package.json
index d70139c4..eca561d1 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
     "eslint-scope": "^7.0.0",
     "eslint-visitor-keys": "^3.0.0",
     "espree": "^9.0.0",
-    "postcss": "^8.4.25",
+    "postcss": "^8.4.28",
     "postcss-scss": "^4.0.6"
   },
   "devDependencies": {
diff --git a/tests/fixtures/parser/style-context/empty-style-element-output.json b/tests/fixtures/parser/style-context/empty-style-element-output.json
index f7793306..e03a6244 100644
--- a/tests/fixtures/parser/style-context/empty-style-element-output.json
+++ b/tests/fixtures/parser/style-context/empty-style-element-output.json
@@ -8,6 +8,11 @@
     "type": "root",
     "nodes": [],
     "source": {
+      "end": {
+        "column": 8,
+        "line": 7,
+        "offset": 52
+      },
       "inputId": 0,
       "start": {
         "column": 8,
diff --git a/tests/fixtures/parser/style-context/one-line-css-output.json b/tests/fixtures/parser/style-context/one-line-css-output.json
index f1c33607..052d8177 100644
--- a/tests/fixtures/parser/style-context/one-line-css-output.json
+++ b/tests/fixtures/parser/style-context/one-line-css-output.json
@@ -59,6 +59,11 @@
       }
     ],
     "source": {
+      "end": {
+        "column": 34,
+        "line": 7,
+        "offset": 103
+      },
       "inputId": 0,
       "start": {
         "column": 8,
diff --git a/tests/fixtures/parser/style-context/simple-css-output.json b/tests/fixtures/parser/style-context/simple-css-output.json
index c17e3e9c..26b4888c 100644
--- a/tests/fixtures/parser/style-context/simple-css-output.json
+++ b/tests/fixtures/parser/style-context/simple-css-output.json
@@ -108,6 +108,11 @@
       }
     ],
     "source": {
+      "end": {
+        "column": 1,
+        "line": 17,
+        "offset": 159
+      },
       "inputId": 0,
       "start": {
         "column": 8,
diff --git a/tests/fixtures/parser/style-context/simple-scss-output.json b/tests/fixtures/parser/style-context/simple-scss-output.json
index 600b9962..42a09d6e 100644
--- a/tests/fixtures/parser/style-context/simple-scss-output.json
+++ b/tests/fixtures/parser/style-context/simple-scss-output.json
@@ -159,6 +159,11 @@
       }
     ],
     "source": {
+      "end": {
+        "column": 1,
+        "line": 18,
+        "offset": 276
+      },
       "inputId": 0,
       "start": {
         "column": 20,
diff --git a/tests/fixtures/parser/style-context/unrelated-style-attr-output.json b/tests/fixtures/parser/style-context/unrelated-style-attr-output.json
index 4d7100d8..c5744ce8 100644
--- a/tests/fixtures/parser/style-context/unrelated-style-attr-output.json
+++ b/tests/fixtures/parser/style-context/unrelated-style-attr-output.json
@@ -108,6 +108,11 @@
       }
     ],
     "source": {
+      "end": {
+        "column": 1,
+        "line": 17,
+        "offset": 176
+      },
       "inputId": 0,
       "start": {
         "column": 25,
diff --git a/tests/fixtures/parser/style-location-converter/simple-css-output.json b/tests/fixtures/parser/style-location-converter/simple-css-output.json
index af8eed52..c2f8d1ad 100644
--- a/tests/fixtures/parser/style-location-converter/simple-css-output.json
+++ b/tests/fixtures/parser/style-location-converter/simple-css-output.json
@@ -4,11 +4,15 @@
       "start": {
         "line": 9,
         "column": 7
+      },
+      "end": {
+        "line": 17,
+        "column": 1
       }
     },
     [
       89,
-      null
+      160
     ]
   ],
   [
diff --git a/tests/fixtures/parser/style-location-converter/simple-scss-output.json b/tests/fixtures/parser/style-location-converter/simple-scss-output.json
index 2e622e5c..01cb982b 100644
--- a/tests/fixtures/parser/style-location-converter/simple-scss-output.json
+++ b/tests/fixtures/parser/style-location-converter/simple-scss-output.json
@@ -4,11 +4,15 @@
       "start": {
         "line": 7,
         "column": 19
+      },
+      "end": {
+        "line": 18,
+        "column": 1
       }
     },
     [
       130,
-      null
+      277
     ]
   ],
   [
diff --git a/tests/src/parser/style-context.ts b/tests/src/parser/style-context.ts
index f4e96d37..69a2750f 100644
--- a/tests/src/parser/style-context.ts
+++ b/tests/src/parser/style-context.ts
@@ -41,11 +41,11 @@ describe("Check for AST.", () => {
 
 function styleContextToJson(styleContext: StyleContext): string {
   return JSON.stringify(styleContext, nodeReplacer, 2);
-}
 
-function nodeReplacer(key: string, value: any): any {
-  if (key === "file" || key === "url") {
-    return undefined;
+  function nodeReplacer(key: string, value: any): any {
+    if (key === "file" || key === "url") {
+      return undefined;
+    }
+    return value;
   }
-  return value;
 }
diff --git a/tools/update-fixtures.ts b/tools/update-fixtures.ts
index b3ad86a0..11c8b99c 100644
--- a/tools/update-fixtures.ts
+++ b/tools/update-fixtures.ts
@@ -14,12 +14,22 @@ import {
 import type ts from "typescript";
 import type ESTree from "estree";
 import * as tsESLintParser from "@typescript-eslint/parser";
+import type { SourceLocation } from "../src/ast";
 
 const ERROR_FIXTURE_ROOT = path.resolve(
   __dirname,
   "../tests/fixtures/parser/error",
 );
 
+const STYLE_CONTEXT_FIXTURE_ROOT = path.resolve(
+  __dirname,
+  "../tests/fixtures/parser/style-context",
+);
+const STYLE_LOCATION_FIXTURE_ROOT = path.resolve(
+  __dirname,
+  "../tests/fixtures/parser/style-location-converter",
+);
+
 const RULES = [
   "no-unused-labels",
   "no-extra-label",
@@ -128,6 +138,61 @@ for (const { input, inputFileName, outputFileName, config } of listupFixtures(
   }
 }
 
+for (const { input, inputFileName, outputFileName, config } of listupFixtures(
+  STYLE_CONTEXT_FIXTURE_ROOT,
+)) {
+  const result = parse(input, inputFileName, config);
+  const styleContext = result.services.getStyleContext();
+  fs.writeFileSync(
+    outputFileName,
+    `${styleContextToJson(styleContext)}\n`,
+    "utf8",
+  );
+}
+
+/** StyleContext to JSON string */
+function styleContextToJson(styleContext: parser.StyleContext): string {
+  return JSON.stringify(styleContext, nodeReplacer, 2);
+
+  /** JSON string replacer for StyleContext */
+  function nodeReplacer(key: string, value: any): any {
+    if (key === "file" || key === "url") {
+      return undefined;
+    }
+    return value;
+  }
+}
+
+for (const { input, inputFileName, outputFileName, config } of listupFixtures(
+  STYLE_LOCATION_FIXTURE_ROOT,
+)) {
+  const services = parse(input, inputFileName, config).services;
+  const styleContext = services.getStyleContext();
+  if (styleContext.status !== "success") {
+    continue;
+  }
+  const locations: [
+    Partial<SourceLocation>,
+    [number | undefined, number | undefined],
+  ][] = [
+    [
+      services.styleNodeLoc(styleContext.sourceAst),
+      services.styleNodeRange(styleContext.sourceAst),
+    ],
+  ];
+  styleContext.sourceAst.walk((node) => {
+    locations.push([
+      services.styleNodeLoc(node),
+      services.styleNodeRange(node),
+    ]);
+  });
+  fs.writeFileSync(
+    outputFileName,
+    `${JSON.stringify(locations, undefined, 2)}\n`,
+    "utf8",
+  );
+}
+
 // eslint-disable-next-line require-jsdoc -- X
 function createLinter() {
   const linter = new Linter();