diff --git a/package-lock.json b/package-lock.json
index b65201b8f7be..e8d8976e4cf7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "license": "(MIT AND CC-BY-4.0)",
       "dependencies": {
         "@github/failbot": "0.8.0",
-        "@primer/css": "^19.4.0",
+        "@primer/css": "^20.1.1",
         "@primer/octicons": "17.0.0",
         "@primer/octicons-react": "17.0.0",
         "@primer/react": "^34.7.1",
@@ -4128,20 +4128,20 @@
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     },
     "node_modules/@primer/css": {
-      "version": "19.4.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-19.4.0.tgz",
-      "integrity": "sha512-Ptg9eTw140v97M+jdxP8vjC4BsiWjAvhMA0qjPx1rsH9oHfIrAqLEBDXkfMl5wYZrEflatyHAbxa4zos5DJttA==",
+      "version": "20.1.1",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-20.1.1.tgz",
+      "integrity": "sha512-Aah6qa9SCkEqVeauF+q+AUg29Bq5Ut8l6aYP9v5mt8IK9l0uHowpMcOeA+ERy4wSOGhHkn2zOe9M0qQTlVvhzg==",
       "dependencies": {
-        "@primer/primitives": "^7.4.0"
+        "@primer/primitives": "^7.8.3"
       },
       "engines": {
         "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
       }
     },
     "node_modules/@primer/css/node_modules/@primer/primitives": {
-      "version": "7.4.0",
-      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-7.4.0.tgz",
-      "integrity": "sha512-gD6yHXN7YKox/bdUNgxhoSS/WXZVaORK1r4dOAyTrdoPrLV/ucIfRInPyVcTF+Mqr0zcTFJtiMtuA5Y8CSyOEg=="
+      "version": "7.8.3",
+      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-7.8.3.tgz",
+      "integrity": "sha512-04ZwfJhpZ0QFwDrJfCuLX6iOh0BflWDTvuoRA80lQH9xk0RtIg16INbruwwtnbSgnKKXXRSykRRJ5BbxnqufRA=="
     },
     "node_modules/@primer/octicons": {
       "version": "17.0.0",
@@ -25735,17 +25735,17 @@
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     },
     "@primer/css": {
-      "version": "19.4.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-19.4.0.tgz",
-      "integrity": "sha512-Ptg9eTw140v97M+jdxP8vjC4BsiWjAvhMA0qjPx1rsH9oHfIrAqLEBDXkfMl5wYZrEflatyHAbxa4zos5DJttA==",
+      "version": "20.1.1",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-20.1.1.tgz",
+      "integrity": "sha512-Aah6qa9SCkEqVeauF+q+AUg29Bq5Ut8l6aYP9v5mt8IK9l0uHowpMcOeA+ERy4wSOGhHkn2zOe9M0qQTlVvhzg==",
       "requires": {
-        "@primer/primitives": "^7.4.0"
+        "@primer/primitives": "^7.8.3"
       },
       "dependencies": {
         "@primer/primitives": {
-          "version": "7.4.0",
-          "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-7.4.0.tgz",
-          "integrity": "sha512-gD6yHXN7YKox/bdUNgxhoSS/WXZVaORK1r4dOAyTrdoPrLV/ucIfRInPyVcTF+Mqr0zcTFJtiMtuA5Y8CSyOEg=="
+          "version": "7.8.3",
+          "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-7.8.3.tgz",
+          "integrity": "sha512-04ZwfJhpZ0QFwDrJfCuLX6iOh0BflWDTvuoRA80lQH9xk0RtIg16INbruwwtnbSgnKKXXRSykRRJ5BbxnqufRA=="
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diff --git a/package.json b/package.json
index 2920614ef9ac..855318e9ba7e 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   ],
   "dependencies": {
     "@github/failbot": "0.8.0",
-    "@primer/css": "^19.4.0",
+    "@primer/css": "^20.1.1",
     "@primer/octicons": "17.0.0",
     "@primer/octicons-react": "17.0.0",
     "@primer/react": "^34.7.1",