diff --git a/packages/tailwindcss-language-service/package-lock.json b/packages/tailwindcss-language-service/package-lock.json
index 581bfe94..eb2497e5 100644
--- a/packages/tailwindcss-language-service/package-lock.json
+++ b/packages/tailwindcss-language-service/package-lock.json
@@ -23,7 +23,7 @@
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+          "url": "https://github.com/sponsors/ai"
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@@ -9380,20 +9380,30 @@
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-      "integrity": "sha512-f/ZFyAKh9Dnqytx5X62jgjhhzttjZS7hMsohcI7HEI5tjELX/HxCy3EFhsRxyzGvrzFF+82XPvCS8T9TFleVJw==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
+      "funding": [
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/postcss/"
+        },
+        {
+          "type": "tidelift",
+          "url": "https://tidelift.com/funding/github/npm/postcss"
+        },
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+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
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-        "picocolors": "^0.2.1",
-        "source-map-js": "^0.6.2"
+        "nanoid": "^3.3.6",
+        "picocolors": "^1.0.0",
+        "source-map-js": "^1.0.2"
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-      "funding": {
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@@ -10937,9 +10947,9 @@
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+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.0.2.tgz",
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@@ -15023,14 +15033,6 @@
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@@ -19223,9 +19225,9 @@
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+      "version": "3.3.6",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.6.tgz",
+      "integrity": "sha512-BGcqMMJuToF7i1rt+2PWSNVnWIkGCU78jBG3RxO/bZlnZPK2Cmi2QaffxGO/2RvWi9sL+FAiRiXMgsyxQ1DIDA=="
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@@ -19761,9 +19763,9 @@
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-      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-0.2.1.tgz",
-      "integrity": "sha512-cMlDqaLEqfSaW8Z7N5Jw+lyIW869EzT73/F5lhtY9cLGoVxSXznfgfXMO0Z5K0o0Q2TkTXq+0KFsdnSe3jDViA=="
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.0.0.tgz",
+      "integrity": "sha512-1fygroTLlHu66zi26VoTDv8yRgm0Fccecssto+MhsZ0D/DGW2sm8E8AjW7NU5VVTRt5GxbeZ5qBuJr+HyLYkjQ=="
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@@ -19847,13 +19849,13 @@
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-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.3.9.tgz",
-      "integrity": "sha512-f/ZFyAKh9Dnqytx5X62jgjhhzttjZS7hMsohcI7HEI5tjELX/HxCy3EFhsRxyzGvrzFF+82XPvCS8T9TFleVJw==",
+      "version": "8.4.31",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",
+      "integrity": "sha512-PS08Iboia9mts/2ygV3eLpY5ghnUcfLV/EXTOW1E2qYxJKGGBUtNjN76FYHnMs36RmARn41bC0AZmn+rR0OVpQ==",
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-        "nanoid": "^3.1.28",
-        "picocolors": "^0.2.1",
-        "source-map-js": "^0.6.2"
+        "nanoid": "^3.3.6",
+        "picocolors": "^1.0.0",
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@@ -21091,9 +21093,9 @@
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diff --git a/packages/tailwindcss-language-service/package.json b/packages/tailwindcss-language-service/package.json
index 4614ae26..33b5c601 100644
--- a/packages/tailwindcss-language-service/package.json
+++ b/packages/tailwindcss-language-service/package.json
@@ -29,7 +29,7 @@
     "dset": "3.1.2",
     "line-column": "1.0.2",
     "moo": "0.5.1",
-    "postcss": "8.3.9",
+    "postcss": "8.4.31",
     "postcss-selector-parser": "6.0.2",
     "postcss-value-parser": "4.2.0",
     "semver": "7.5.2",