diff --git a/package.json b/package.json
index 46cebd4f..f8f53cf7 100644
--- a/package.json
+++ b/package.json
@@ -78,7 +78,7 @@
     "concurrently": "^9.2.1",
     "eslint": "^9.39.4",
     "eslint-config-ndla": "^6.0.15-alpha.0",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.3",
     "typescript-eslint": "^8.57.1",
     "vitest": "^4.1.4"
   },
diff --git a/tsconfig.json b/tsconfig.json
index 371f5487..503a0d15 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,10 +1,10 @@
 {
   "compilerOptions": {
-    "module": "commonjs",
+    "module": "nodenext",
     "esModuleInterop": true,
-    "target": "ES2019",
+    "target": "esnext",
     "noImplicitAny": true,
-    "moduleResolution": "node",
+    "moduleResolution": "nodenext",
     "sourceMap": true,
     "outDir": "build",
     "strict": true,
@@ -17,13 +17,9 @@
     "noFallthroughCasesInSwitch": true,
     "noUncheckedIndexedAccess": true,
     "skipLibCheck": true,
+    "rootDir": "src",
     "lib": ["es2020", "esnext.asynciterable", "DOM"],
-    "types": ["vitest/globals"],
-    "plugins": [
-      {
-        "name": "typescript-strict-plugin"
-      }
-    ]
+    "types": ["vitest/globals"]
   },
   "include": ["src/**/*"],
   "exclude": ["**/*-test.ts"]
diff --git a/yarn.lock b/yarn.lock
index 9d04b549..a235b2db 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6366,7 +6366,7 @@ __metadata:
     punycode: "npm:^2.3.1"
     sanitize-html: "npm:^2.17.0"
     source-map-support: "npm:^0.5.21"
-    typescript: "npm:^5.9.3"
+    typescript: "npm:^6.0.3"
     typescript-eslint: "npm:^8.57.1"
     vitest: "npm:^4.1.4"
     winston: "npm:^3.13.0"
@@ -8231,23 +8231,23 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@npm:^5.9.3":
-  version: 5.9.3
-  resolution: "typescript@npm:5.9.3"
+"typescript@npm:^6.0.3":
+  version: 6.0.3
+  resolution: "typescript@npm:6.0.3"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 10c0/6bd7552ce39f97e711db5aa048f6f9995b53f1c52f7d8667c1abdc1700c68a76a308f579cd309ce6b53646deb4e9a1be7c813a93baaf0a28ccd536a30270e1c5
+  checksum: 10c0/4a25ff5045b984370f48f196b3a0120779b1b343d40b9a68d114ea5e5fff099809b2bb777576991a63a5cd59cf7bffd96ff6fe10afcefbcb8bd6fb96ad4b6606
   languageName: node
   linkType: hard
 
-"typescript@patch:typescript@npm%3A^5.9.3#optional!builtin<compat/typescript>":
-  version: 5.9.3
-  resolution: "typescript@patch:typescript@npm%3A5.9.3#optional!builtin<compat/typescript>::version=5.9.3&hash=5786d5"
+"typescript@patch:typescript@npm%3A^6.0.3#optional!builtin<compat/typescript>":
+  version: 6.0.3
+  resolution: "typescript@patch:typescript@npm%3A6.0.3#optional!builtin<compat/typescript>::version=6.0.3&hash=5786d5"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 10c0/ad09fdf7a756814dce65bc60c1657b40d44451346858eea230e10f2e95a289d9183b6e32e5c11e95acc0ccc214b4f36289dcad4bf1886b0adb84d711d336a430
+  checksum: 10c0/2f25c74e65663c248fa1ade2b8459d9ce5372ff9dad07067310f132966ebec1d93f6c42f0baf77a6b6a7a91460463f708e6887013aaade22111037457c6b25df
   languageName: node
   linkType: hard