diff --git a/package.json b/package.json
index 832b2dac..404dbdb9 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "@quarterto/sass-functions": "^1.1.0",
     "@quarterto/select-features": "^1.1.0",
     "@quarterto/tcp-fetch": "^1.0.0",
-    "autoprefixer": "^6.3.3",
+    "autoprefixer": "^10.0.0",
     "cheerio": "^0.22.0",
     "cookie-parser": "^1.4.1",
     "csso": "^3.0.0",
@@ -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": "^8.2.13",
+    "postcss-csso": "^4.0.0",
+    "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"