diff --git a/package-lock.json b/package-lock.json
index 13735af..b4ee313 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,7 @@
         "@guardian/tsconfig": "1.0.1",
         "@jest/globals": "30.3.0",
         "@types/jest": "30.0.0",
-        "@types/node": "25.3.3",
+        "@types/node": "26.1.2",
         "eslint": "9.39.2",
         "eslint-plugin-prettier": "5.5.5",
         "jest": "30.2.0",
@@ -3099,13 +3099,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "25.3.3",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.3.3.tgz",
-      "integrity": "sha512-DpzbrH7wIcBaJibpKo9nnSQL0MTRdnWttGyE5haGwK86xgMOkFLp7vEyfQPGLOJh5wNYiJ3V9PmUMDhV9u8kkQ==",
+      "version": "26.1.2",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.1.2.tgz",
+      "integrity": "sha512-Vu4a5UFA9rIIFJ7rB/Vaafh9lrCQszopTCx6KjFboXTGQbPNasehVR5TEiithSDGyd1DEiUByggTZsg8jukeIg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~7.18.0"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@types/normalize-package-data": {
@@ -9974,9 +9974,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "7.18.2",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.18.2.tgz",
-      "integrity": "sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w==",
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
+      "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
       "dev": true,
       "license": "MIT"
     },
@@ -10366,7 +10366,7 @@
     "packages/cdk": {
       "version": "0.0.0",
       "devDependencies": {
-        "@guardian/cdk": "^64.1.0",
+        "@guardian/cdk": "64.1.0",
         "source-map-support": "0.5.21"
       }
     },
diff --git a/package.json b/package.json
index cecfdf3..e5a40b4 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "@guardian/tsconfig": "1.0.1",
     "@jest/globals": "30.3.0",
     "@types/jest": "30.0.0",
-    "@types/node": "25.3.3",
+    "@types/node": "26.1.2",
     "eslint": "9.39.2",
     "eslint-plugin-prettier": "5.5.5",
     "jest": "30.2.0",