diff --git a/package.json b/package.json
index 594fb135..8bc54b9f 100644
--- a/package.json
+++ b/package.json
@@ -68,10 +68,10 @@
     "node-fetch": "^2.6.0",
     "node-sass": "^4.12.0",
     "o-date": "https://github.com/Financial-Times/o-date#v2.11.0",
-    "postcss": "^7.0.16",
-    "postcss-csso": "^3.0.0",
-    "postcss-discard-empty": "^4.0.0",
-    "postcss-inline-svg": "^3.0.0",
+    "postcss": "^8.0.0",
+    "postcss-csso": "^6.0.0",
+    "postcss-discard-empty": "^5.0.0",
+    "postcss-inline-svg": "^5.0.0",
     "postcss-remove-unused": "^1.2.0",
     "raven": "^0.12.0",
     "supertest": "^4.0.2",