diff --git a/package-lock.json b/package-lock.json
index fbfafac..dfdf97d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,13 +11,13 @@
       "devDependencies": {
         "@arethetypeswrong/cli": "^0.18.2",
         "@types/node": "^24.0.0",
-        "prettier": "^3.6.0",
+        "prettier": "^3.9.10",
         "publint": "^0.3.12",
         "typescript": "^5.9.0",
         "vitest": "^4.0.16"
       },
       "engines": {
-        "node": ">=18"
+        "node": ">=20"
       }
     },
     "node_modules/@andrewbranch/untar.js": {
@@ -457,7 +457,6 @@
       "integrity": "sha512-93d49wCWJkCyN87MxLpNN6KXPCwFw7bVUg79mGUV1OS40JGWwVCr8n61DXCSqz7CV6/VfPkb7xec7uP2M+QHWQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "undici-types": ">=7.24.0 <7.24.7"
       }
@@ -1209,7 +1208,6 @@
       "integrity": "sha512-jcByLnIFkd5gSXZmjNvS1TlmRhCXZjIzHYlaGkPlLIekG55JDR2Z4va9tZwCiP+/RDERiNhMOFu01xd6O5ct1Q==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "marked": "bin/marked.js"
       },
@@ -1381,7 +1379,6 @@
       "integrity": "sha512-qcJu88Q2IWqJsDD529JKMdwGm/dvInW4HvQnRwiH9JtihJvzGOscDtHE3x1pBKeUOTysQ8kVmLnJ2kJu7yhcGA==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -1419,9 +1416,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "3.9.9",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.9.9.tgz",
-      "integrity": "sha512-Z/CJHIkdujO/OtN7nXUii0Rf3VT5SRuhjBA82Xvu2XhBUgX3nhP67T0LHceBdQLex7OOFGTox+Q5Yg8Jk2Qivg==",
+      "version": "3.9.10",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.9.10.tgz",
+      "integrity": "sha512-skGHTH1Yb9QvaTC4hWnRTzEYtCpApF0UMBPz+t/0ZPzP8ihefo/btKd+QA7pUE0fEwA1SbS/NmhyEcstdXOIdA==",
       "dev": true,
       "license": "MIT",
       "bin": {
@@ -1752,7 +1749,6 @@
       "integrity": "sha512-IftLE8phJhdNRIGNEV4JCCvfNScoZQVfcXaN8TQropWGJtOHcu+iAB9pHcuGvmEb/kddw0LBe/jS8ztdC6xdiQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "lightningcss": "^1.33.0",
         "picomatch": "^4.0.7",
diff --git a/package.json b/package.json
index 8ef44a1..3449aa0 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
   "devDependencies": {
     "@arethetypeswrong/cli": "^0.18.2",
     "@types/node": "^24.0.0",
-    "prettier": "^3.6.0",
+    "prettier": "^3.9.10",
     "publint": "^0.3.12",
     "typescript": "^5.9.0",
     "vitest": "^4.0.16"