diff --git a/package-lock.json b/package-lock.json
index 4e16219..9e6f3c5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1918,9 +1918,9 @@
       }
     },
     "@primer/css": {
-      "version": "14.4.0",
-      "resolved": "https://registry.npmjs.org/@primer/css/-/css-14.4.0.tgz",
-      "integrity": "sha512-o9DwcAH43jZNDC/rPLjsYTU/I1LsHIgIQlSO3X8vZV2u65LmWeA5jHI2cSadZYN3N0Gm0Soh0zVYuhh7kMskXA==",
+      "version": "15.0.0",
+      "resolved": "https://registry.npmjs.org/@primer/css/-/css-15.0.0.tgz",
+      "integrity": "sha512-9jMRl9rOsdy8kE7AW0tM3tyom1PTV7JMT1TCE9FgZ8HDM2xAaM5+apb0Ss4RZ7+5eAZbW9ayGX+iXyL6aHPhgg==",
       "requires": {
         "@primer/octicons": "^9.1.1"
       }
diff --git a/package.json b/package.json
index 8bfaf4d..f862f85 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "@angular/platform-browser": "~9.1.9",
     "@angular/platform-browser-dynamic": "~9.1.9",
     "@angular/router": "~9.1.9",
-    "@primer/css": "^14.4.0",
+    "@primer/css": "^15.0.0",
     "rxjs": "~6.5.5",
     "tslib": "^2.0.0",
     "zone.js": "~0.10.3"