diff --git a/package-lock.json b/package-lock.json
index 53adcbb73af8..b15cc30ecdae 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,7 +8,7 @@
       "license": "(MIT AND CC-BY-4.0)",
       "dependencies": {
         "@primer/components": "^28.0.4",
-        "@primer/css": "^16.2.0",
+        "@primer/css": "^17.3.0",
         "@primer/octicons": "^14.1.0",
         "@primer/octicons-react": "^14.1.0",
         "ajv": "^8.4.0",
@@ -3728,20 +3728,11 @@
       "integrity": "sha512-W3tdfiQ/6wSVkbwmv0RmIiZmzqcgQJKCwTjEUp1qMreQqe+smrtYq6u9pbWGlMgxX8aX79duNwwfiQ44eGO4NA=="
     },
     "node_modules/@primer/css": {
-      "version": "16.2.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-16.2.0.tgz",
-      "integrity": "sha512-nELaaTJAuDBfyoHuz9c5P3ALDVavt/BSyAAa7KEpyi9S3BupYSitCwGkcJE+U6LtCUzHoqv31N9R2eJJxTgCyQ==",
+      "version": "17.3.0",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-17.3.0.tgz",
+      "integrity": "sha512-fKxMh6CixHxRI/0zQmEkQ2eP0960TeIsHsc2oKFvGVDwaIi7Dm1BOC10lrC9aEMxsvRG3rfCW2HXgsaua+iGKA==",
       "dependencies": {
-        "@primer/octicons": "12.1.0",
-        "@primer/primitives": "4.2.0"
-      }
-    },
-    "node_modules/@primer/css/node_modules/@primer/octicons": {
-      "version": "12.1.0",
-      "resolved": "https://registry.npmjs.org/@primer/octicons/-/octicons-12.1.0.tgz",
-      "integrity": "sha512-jayKLMTCx/0zh4fjYmkxdlEgQ8STwevn5S48fkvi/03asITmBkaYAMPrUgO8VNSQkSPHIEuc3oTLXgh+JwH0UQ==",
-      "dependencies": {
-        "object-assign": "^4.1.1"
+        "@primer/primitives": "^4.3.5"
       }
     },
     "node_modules/@primer/octicons": {
@@ -3761,9 +3752,9 @@
       }
     },
     "node_modules/@primer/primitives": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-4.2.0.tgz",
-      "integrity": "sha512-/2/9ueCWWzqaLRSJ3TNGthMVX8DBn/oa+ZY9eB/TmxUPglXd8AQMxV2wz+pAoy8SpXXwe84JuEgHTAghzAOh0w=="
+      "version": "4.5.1",
+      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-4.5.1.tgz",
+      "integrity": "sha512-dA5EKORl1fqOa5+cDKYXTPLTNK0BuHS6NPHh1b11H4ngSd6cbuXzzVkUCJ1ooTDR6UbOrpeXMdlUbA9EcwwFVA=="
     },
     "node_modules/@sideway/address": {
       "version": "4.1.2",
@@ -27336,22 +27327,11 @@
       }
     },
     "@primer/css": {
-      "version": "16.2.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-16.2.0.tgz",
-      "integrity": "sha512-nELaaTJAuDBfyoHuz9c5P3ALDVavt/BSyAAa7KEpyi9S3BupYSitCwGkcJE+U6LtCUzHoqv31N9R2eJJxTgCyQ==",
+      "version": "17.3.0",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-17.3.0.tgz",
+      "integrity": "sha512-fKxMh6CixHxRI/0zQmEkQ2eP0960TeIsHsc2oKFvGVDwaIi7Dm1BOC10lrC9aEMxsvRG3rfCW2HXgsaua+iGKA==",
       "requires": {
-        "@primer/octicons": "12.1.0",
-        "@primer/primitives": "4.2.0"
-      },
-      "dependencies": {
-        "@primer/octicons": {
-          "version": "12.1.0",
-          "resolved": "https://registry.npmjs.org/@primer/octicons/-/octicons-12.1.0.tgz",
-          "integrity": "sha512-jayKLMTCx/0zh4fjYmkxdlEgQ8STwevn5S48fkvi/03asITmBkaYAMPrUgO8VNSQkSPHIEuc3oTLXgh+JwH0UQ==",
-          "requires": {
-            "object-assign": "^4.1.1"
-          }
-        }
+        "@primer/primitives": "^4.3.5"
       }
     },
     "@primer/octicons": {
@@ -27368,9 +27348,9 @@
       "integrity": "sha512-gf7knl1HjyyCWt+eogE6D/aZHDcIXrQpkXgLYw8Tskdai6lEjbJl7BDDgra42P2ZwqDcBCQcdF25Ktu30y6ilA=="
     },
     "@primer/primitives": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-4.2.0.tgz",
-      "integrity": "sha512-/2/9ueCWWzqaLRSJ3TNGthMVX8DBn/oa+ZY9eB/TmxUPglXd8AQMxV2wz+pAoy8SpXXwe84JuEgHTAghzAOh0w=="
+      "version": "4.5.1",
+      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-4.5.1.tgz",
+      "integrity": "sha512-dA5EKORl1fqOa5+cDKYXTPLTNK0BuHS6NPHh1b11H4ngSd6cbuXzzVkUCJ1ooTDR6UbOrpeXMdlUbA9EcwwFVA=="
     },
     "@sideway/address": {
       "version": "4.1.2",
diff --git a/package.json b/package.json
index 8530cf0c52a5..84881283dbb0 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   ],
   "dependencies": {
     "@primer/components": "^28.0.4",
-    "@primer/css": "^16.2.0",
+    "@primer/css": "^17.3.0",
     "@primer/octicons": "^14.1.0",
     "@primer/octicons-react": "^14.1.0",
     "ajv": "^8.4.0",