diff --git a/package-lock.json b/package-lock.json
index 7d9c9fc..230cab6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -275,22 +275,19 @@
       }
     },
     "@primer/css": {
-      "version": "15.2.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-15.2.0.tgz",
-      "integrity": "sha512-/vNDchWrxlXqd6E+SWQcChPHJVzGia9aCaTYoz8O9sJTnUSiTKOgSNCQuOXyUInPruTRSqj+z3MZxayKcTsWhA==",
+      "version": "20.4.8",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-20.4.8.tgz",
+      "integrity": "sha512-dMqc1iG3Aq1vfAiOMJMmY2QipfVpDM+B+PJPT/2GzXIKXN0VgAfxj77zfnu5a60qGXsBE7Rfk3YPGtmHOhxE1Q==",
       "dev": true,
       "requires": {
-        "@primer/octicons": "^9.1.1"
+        "@primer/primitives": "^7.9.0"
       }
     },
-    "@primer/octicons": {
-      "version": "9.6.0",
-      "resolved": "https://registry.npmjs.org/@primer/octicons/-/octicons-9.6.0.tgz",
-      "integrity": "sha512-B5Wzk5izRXXz0JqEXJkVUtqhCXSpUKgqYkVwegMkp5sziBW+ksd9LPbONlCWyyLODwf9GsI2sBXekR7m+JJDBw==",
-      "dev": true,
-      "requires": {
-        "object-assign": "^4.1.1"
-      }
+    "@primer/primitives": {
+      "version": "7.10.0",
+      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-7.10.0.tgz",
+      "integrity": "sha512-DdLHq21e93R9qDHyRuRpytBLY0Up9IwNWMOUgPNW6lRSng4N4+IdUlLS3Ekbasmxfs8Z8vKS8aezeYovQ5qsxQ==",
+      "dev": true
     },
     "@stylelint/postcss-css-in-js": {
       "version": "0.37.2",
diff --git a/package.json b/package.json
index fe39808..259b085 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   "bugs": "https://github.com/just-the-docs/just-the-docs/issues",
   "devDependencies": {
     "stylelint": "^13.7.2",
-    "@primer/css": "^15.2.0",
+    "@primer/css": "^20.4.8",
     "prettier": "^2.7.1",
     "stylelint-config-prettier": "^8.0.2",
     "stylelint-config-primer": "^9.2.1",