diff --git a/package-lock.json b/package-lock.json
index 4365b5c8b75d..b6c058687606 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
         "@alex_neo/jest-expect-message": "^1.0.5",
         "@hapi/accept": "^5.0.2",
         "@primer/components": "^31.1.0",
-        "@primer/css": "^18.1.0",
+        "@primer/css": "^19.0.0",
         "@primer/octicons": "^16.1.1",
         "@primer/octicons-react": "^16.1.1",
         "accept-language-parser": "^1.5.0",
@@ -3543,20 +3543,20 @@
       }
     },
     "node_modules/@primer/css": {
-      "version": "18.1.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-18.1.0.tgz",
-      "integrity": "sha512-B7ZjxeGPXzcaSm7dAp9n1C2tXDfJnRpdUlfLoTnsXWGKKgbHKgtDtwgRn+e0KGSDoNTmC85N3gemNfkT69D0kg==",
+      "version": "19.0.0",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-19.0.0.tgz",
+      "integrity": "sha512-w3/DoQlWBjyyo0scneGkcVHyaIBFjODbmWZoJ1qYHe+eLufPOKNc5Tf/OlxqiYQxGCF8vVb3f/i30z4KfzJzzA==",
       "dependencies": {
-        "@primer/primitives": "6.0.0"
+        "@primer/primitives": "^7.1.0"
       },
       "engines": {
         "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
       }
     },
     "node_modules/@primer/css/node_modules/@primer/primitives": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-6.0.0.tgz",
-      "integrity": "sha512-idupwQC7vpMki4G2HBpQqTAD6MusFkipgfNXxETQ1D4yLkMQ1bMuif09dnHB7bhQBO5pXUFt52LMpPAnM5Zv4w=="
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-7.1.0.tgz",
+      "integrity": "sha512-XVM535ieY+ohh82oMCZZwlebsnNtJORR5vpiUk/OLT1KX7pr2aRiSbitFwZ3umo0dw/L5tr6ebSJjRCXLu8UJg=="
     },
     "node_modules/@primer/octicons": {
       "version": "16.1.1",
@@ -25481,17 +25481,17 @@
       }
     },
     "@primer/css": {
-      "version": "18.1.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-18.1.0.tgz",
-      "integrity": "sha512-B7ZjxeGPXzcaSm7dAp9n1C2tXDfJnRpdUlfLoTnsXWGKKgbHKgtDtwgRn+e0KGSDoNTmC85N3gemNfkT69D0kg==",
+      "version": "19.0.0",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-19.0.0.tgz",
+      "integrity": "sha512-w3/DoQlWBjyyo0scneGkcVHyaIBFjODbmWZoJ1qYHe+eLufPOKNc5Tf/OlxqiYQxGCF8vVb3f/i30z4KfzJzzA==",
       "requires": {
-        "@primer/primitives": "6.0.0"
+        "@primer/primitives": "^7.1.0"
       },
       "dependencies": {
         "@primer/primitives": {
-          "version": "6.0.0",
-          "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-6.0.0.tgz",
-          "integrity": "sha512-idupwQC7vpMki4G2HBpQqTAD6MusFkipgfNXxETQ1D4yLkMQ1bMuif09dnHB7bhQBO5pXUFt52LMpPAnM5Zv4w=="
+          "version": "7.1.0",
+          "resolved": "https://registry.npmjs.org/@primer/primitives/-/primitives-7.1.0.tgz",
+          "integrity": "sha512-XVM535ieY+ohh82oMCZZwlebsnNtJORR5vpiUk/OLT1KX7pr2aRiSbitFwZ3umo0dw/L5tr6ebSJjRCXLu8UJg=="
         }
       }
     },
diff --git a/package.json b/package.json
index d9d5f13e677c..80f33aad7d4e 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "@alex_neo/jest-expect-message": "^1.0.5",
     "@hapi/accept": "^5.0.2",
     "@primer/components": "^31.1.0",
-    "@primer/css": "^18.1.0",
+    "@primer/css": "^19.0.0",
     "@primer/octicons": "^16.1.1",
     "@primer/octicons-react": "^16.1.1",
     "accept-language-parser": "^1.5.0",