diff --git a/packages/gatsby-plugin-purgecss/package.json b/packages/gatsby-plugin-purgecss/package.json
index c784a1f1..f9868b93 100644
--- a/packages/gatsby-plugin-purgecss/package.json
+++ b/packages/gatsby-plugin-purgecss/package.json
@@ -24,7 +24,7 @@
     "release-it": "^15.6.0",
     "ts-jest": "^27.1.5",
     "ts-node": "^10.9.1",
-    "typescript": "^4.9.4"
+    "typescript": "^5.0.0"
   },
   "dependencies": {
     "fs-extra": "^11.1.0",
diff --git a/yarn.lock b/yarn.lock
index 241f9d75..a6818caf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9017,7 +9017,7 @@ __metadata:
     release-it: ^15.6.0
     ts-jest: ^27.1.5
     ts-node: ^10.9.1
-    typescript: ^4.9.4
+    typescript: ^5.0.0
   peerDependencies:
     gatsby: ^2.0.0 || ^3.0.0 || ^4.0.0 || ^5.0.0
   languageName: unknown
@@ -17253,23 +17253,23 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@npm:^4.9.4":
-  version: 4.9.4
-  resolution: "typescript@npm:4.9.4"
+"typescript@npm:^5.0.0":
+  version: 5.0.3
+  resolution: "typescript@npm:5.0.3"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: e782fb9e0031cb258a80000f6c13530288c6d63f1177ed43f770533fdc15740d271554cdae86701c1dd2c83b082cea808b07e97fd68b38a172a83dbf9e0d0ef9
+  checksum: 3cce0576d218cb4277ff8b6adfef1a706e9114a98b4261a38ad658a7642f1b274a8396394f6cbff8c0ba852996d7ed2e233e9b8431d5d55ac7c2f6fea645af02
   languageName: node
   linkType: hard
 
-"typescript@patch:typescript@^4.9.4#~builtin<compat/typescript>":
-  version: 4.9.4
-  resolution: "typescript@patch:typescript@npm%3A4.9.4#~builtin<compat/typescript>::version=4.9.4&hash=ad5954"
+"typescript@patch:typescript@^5.0.0#~builtin<compat/typescript>":
+  version: 5.0.3
+  resolution: "typescript@patch:typescript@npm%3A5.0.3#~builtin<compat/typescript>::version=5.0.3&hash=ad5954"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 1caaea6cb7f813e64345190fddc4e6c924d0b698ab81189b503763c4a18f7f5501c69362979d36e19c042d89d936443e768a78b0675690b35eb663d19e0eae71
+  checksum: 9ec0a8eed38d46cc2c8794555b7674e413604c56c159f71b8ff21ce7f17334a44127a68724cb2ef8221ff3b19369f8f05654e8a5266621d7d962aeed889bd630
   languageName: node
   linkType: hard