diff --git a/.changeset/beige-ties-perform.md b/.changeset/beige-ties-perform.md
new file mode 100644
index 00000000..59ac23ef
--- /dev/null
+++ b/.changeset/beige-ties-perform.md
@@ -0,0 +1,5 @@
+---
+"eslint-plugin-vue-scoped-css": patch
+---
+
+fix(deps): bump postcss to 8.4.31
diff --git a/lib/styles/parser/css-parser.ts b/lib/styles/parser/css-parser.ts
index e0e4a42b..4d85f391 100644
--- a/lib/styles/parser/css-parser.ts
+++ b/lib/styles/parser/css-parser.ts
@@ -485,7 +485,11 @@ function getESLintLineAndColumnFromPostCSSNode(
     offsetLocation,
     sourceLoc,
   );
-  if (locName === "end") {
+  if (
+    locName === "end" &&
+    // The end location of the PostCSS root node has a different position than other nodes.
+    node.type !== "root"
+  ) {
     // End column is shifted by one.
     return { line, column: column + 1 };
   }
diff --git a/package-lock.json b/package-lock.json
index 47e84d91..c64d50d1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "eslint-utils": "^3.0.0",
         "lodash": "^4.17.21",
-        "postcss": "^8.4.6",
+        "postcss": "^8.4.31",
         "postcss-safe-parser": "^6.0.0",
         "postcss-scss": "^4.0.3",
         "postcss-selector-parser": "^6.0.9",
@@ -16244,9 +16244,9 @@
       }
     },
     "node_modules/postcss": {
-      "version": "8.4.24",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.24.tgz",
-      "integrity": "sha512-M0RzbcI0sO/XJNucsGjvWU9ERWxb/ytp1w6dKtxTKgixdtQDq4rmx/g8W1hnaheq9jgwL/oyEdH5Bc4WwJKMqg==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "funding": [
         {
           "type": "opencollective",
@@ -37348,9 +37348,9 @@
       "dev": true
     },
     "postcss": {
-      "version": "8.4.24",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.24.tgz",
-      "integrity": "sha512-M0RzbcI0sO/XJNucsGjvWU9ERWxb/ytp1w6dKtxTKgixdtQDq4rmx/g8W1hnaheq9jgwL/oyEdH5Bc4WwJKMqg==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
       "requires": {
         "nanoid": "^3.3.6",
         "picocolors": "^1.0.0",
diff --git a/package.json b/package.json
index 9e661d00..ae33542b 100644
--- a/package.json
+++ b/package.json
@@ -95,7 +95,7 @@
   "dependencies": {
     "eslint-utils": "^3.0.0",
     "lodash": "^4.17.21",
-    "postcss": "^8.4.6",
+    "postcss": "^8.4.31",
     "postcss-safe-parser": "^6.0.0",
     "postcss-scss": "^4.0.3",
     "postcss-selector-parser": "^6.0.9",