diff --git a/package-lock.json b/package-lock.json
index 3327952..e26c317 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
         "eslint-plugin-prettier": "5.2.1",
         "prettier": "^3.4.2",
         "tsx": "^4.19.2",
-        "typescript": "5.5.2"
+        "typescript": "5.5.4"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
@@ -4861,11 +4861,10 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.5.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.2.tgz",
-      "integrity": "sha512-NcRtPEOsPFFWjobJEtfihkLCZCXZt/os3zf8nTxjVH3RvTSxjrCamJpbExGvYOF+tFHc3pA65qpdwPbzjohhew==",
+      "version": "5.5.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz",
+      "integrity": "sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==",
       "dev": true,
-      "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
diff --git a/package.json b/package.json
index 5aea85d..82fce61 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "eslint-plugin-prettier": "5.2.1",
     "prettier": "^3.4.2",
     "tsx": "^4.19.2",
-    "typescript": "5.5.2"
+    "typescript": "5.5.4"
   },
   "prettier": "@guardian/prettier",
   "eslintConfig": {