diff --git a/package-lock.json b/package-lock.json
index 21a45eb7..6313621c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
         "@actions/github": "^4.0.0",
         "@octokit/graphql": "^4.8.0",
         "@octokit/rest": "^18.12.0",
-        "@primer/css": "^17.11.0",
+        "@primer/css": "^18.0.1",
         "axios": "^0.22.0",
         "clipboard": "^2.0.8",
         "compression": "^1.7.4",
@@ -1840,20 +1840,20 @@
       "integrity": "sha1-XUGq4K61gnqbjuFcqsSnCgWBETo="
     },
     "node_modules/@primer/css": {
-      "version": "17.11.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-17.11.0.tgz",
-      "integrity": "sha512-BGBVzM/SgMM96Q+FFSZlAyXF4MHaSQB7tvvgwTcPqPoNrW1zLVteWbdeQoLNHGphHXL0AlhpInmNXvlhUinOUw==",
+      "version": "18.0.1",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-18.0.1.tgz",
+      "integrity": "sha512-6xc0SAQGFDNl7Lc1ETOl5CIaLP4P3Vo+soWisoCNGWlLbJlHUAJGCSyLR1nZpoIS7vbZeSmwULUzOXzpnFpTFg==",
       "dependencies": {
-        "@primer/primitives": "^4.7.1"
+        "@primer/primitives": "^5.0.0"
       },
       "engines": {
         "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
       }
     },
     "node_modules/@primer/primitives": {
-      "version": "4.8.0",
-      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-4.8.0.tgz",
-      "integrity": "sha512-et4Kwt5LRy5YskHYHFJBoqWoqTHsdQHAOV5YvqQco2P7fQ3Xnus6tMQDuoD2cR03S86qKAjNYO9E6grDxVJWZA=="
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-5.1.0.tgz",
+      "integrity": "sha512-pW8DIh6rZV0/R7lxHnVRJ/tdN4kDVSpAtdcCecxKsvtgK5d9haekt3ERpM6i93xKwB5CJYy9ouuC9C0UqWPI0A=="
     },
     "node_modules/@sindresorhus/is": {
       "version": "4.0.1",
@@ -11536,17 +11536,17 @@
       }
     },
     "@primer/css": {
-      "version": "17.11.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-17.11.0.tgz",
-      "integrity": "sha512-BGBVzM/SgMM96Q+FFSZlAyXF4MHaSQB7tvvgwTcPqPoNrW1zLVteWbdeQoLNHGphHXL0AlhpInmNXvlhUinOUw==",
+      "version": "18.0.1",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-18.0.1.tgz",
+      "integrity": "sha512-6xc0SAQGFDNl7Lc1ETOl5CIaLP4P3Vo+soWisoCNGWlLbJlHUAJGCSyLR1nZpoIS7vbZeSmwULUzOXzpnFpTFg==",
       "requires": {
-        "@primer/primitives": "^4.7.1"
+        "@primer/primitives": "^5.0.0"
       }
     },
     "@primer/primitives": {
-      "version": "4.8.0",
-      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-4.8.0.tgz",
-      "integrity": "sha512-et4Kwt5LRy5YskHYHFJBoqWoqTHsdQHAOV5YvqQco2P7fQ3Xnus6tMQDuoD2cR03S86qKAjNYO9E6grDxVJWZA=="
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-5.1.0.tgz",
+      "integrity": "sha512-pW8DIh6rZV0/R7lxHnVRJ/tdN4kDVSpAtdcCecxKsvtgK5d9haekt3ERpM6i93xKwB5CJYy9ouuC9C0UqWPI0A=="
     },
     "@sindresorhus/is": {
       "version": "4.0.1",
diff --git a/package.json b/package.json
index a27dcf17..65778e7e 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "@actions/github": "^4.0.0",
     "@octokit/graphql": "^4.8.0",
     "@octokit/rest": "^18.12.0",
-    "@primer/css": "^17.11.0",
+    "@primer/css": "^18.0.1",
     "axios": "^0.22.0",
     "clipboard": "^2.0.8",
     "compression": "^1.7.4",