diff --git a/.env.example b/.env.example
index 35d8ec7..e53f66f 100644
--- a/.env.example
+++ b/.env.example
@@ -1,2 +1,3 @@
 STRAPI_BASE_API_URL=https://strapi.accords-library.com|http://localhost:1337/api
+STRAPI_GRAPHQL=https://strapi.accords-library.com/graphql|http://localhost:1337/graphql
 STRAPI_API_TOKEN=
\ No newline at end of file
diff --git a/README.md b/README.md
index 5db20c8..8413811 100644
--- a/README.md
+++ b/README.md
@@ -15,4 +15,10 @@ Usage:
 
 ```sh
 npm run import:weapon-stories
+```
+
+Related checks:
+
+```sh
+npm run check:weapon-stories-duplicates
 ```
\ No newline at end of file
diff --git a/nier-reincarnation/weapon-stories/find-duplicates.mjs b/nier-reincarnation/weapon-stories/find-duplicates.mjs
new file mode 100644
index 0000000..7c06f77
--- /dev/null
+++ b/nier-reincarnation/weapon-stories/find-duplicates.mjs
@@ -0,0 +1,53 @@
+import "dotenv/config";
+
+const response = await fetch(`${process.env.STRAPI_GRAPHQL}`, {
+  method: "POST",
+  headers: {
+    "Content-Type": "application/json",
+    Authorization: `bearer ${process.env.STRAPI_API_TOKEN}`,
+  },
+  body: JSON.stringify({
+    query: `{
+        weaponStories(pagination: { limit: -1 }) {
+          data {
+            id
+            attributes {
+              slug
+              name { name }
+            }
+          }
+        }
+      }`,
+  }),
+});
+
+const normalizeName = (name) => {
+  return name
+    .toLowerCase()
+    .normalize("NFD")
+    .replace(/[\u0300-\u036f]/g, "")
+    .replace(/['’]/g, "'");
+};
+
+const weapons = (await response.json()).data.weaponStories.data;
+
+const nameMap = new Map();
+
+for (const weapon of weapons) {
+  for (const { name } of weapon.attributes.name) {
+    if (name === undefined || name === null) {
+      console.warn(name, "is nullable", weapon);
+    }
+
+    const normalizedName = normalizeName(name);
+
+    if (nameMap.has(normalizedName))
+      console.warn(`
+Duplicate names ${normalizedName} in:
+ 1. ${nameMap.get(normalizedName).attributes.slug}
+ 2. ${weapon.attributes.slug}`);
+    else {
+      nameMap.set(normalizedName, weapon);
+    }
+  }
+}
diff --git a/nier-reincarnation/weapon-stories/index.mjs b/nier-reincarnation/weapon-stories/index.mjs
index 3e203cd..6e4b897 100644
--- a/nier-reincarnation/weapon-stories/index.mjs
+++ b/nier-reincarnation/weapon-stories/index.mjs
@@ -6,6 +6,18 @@ let currentIndex = 1;
 
 let weapons = [];
 
+const slugSpecialCases = new Map([
+  ["phoenix-lance", "phoenix-spear"],
+  ["iron-will", "hymir-finger"],
+  ["the-devil-queen", "widow-death"],
+  ["kains-sword", "kaines-sword"],
+  ["spear-of-the-usurper", "robber-king"],
+  ["ancient-overlord", "kingsblood"],
+  ["fang-of-the-twins", "twins-fang"],
+  ["dragoon-lance", "knight-vow"],
+  ["faith", "nobuyoshi"],
+]);
+
 try {
   console.log('Fetching NieR Re[in]carnation weapons...')
   weapons = await fetch(`${NIERREIN_GUIDE_API_URL}/weapons`)
@@ -30,6 +42,11 @@ for (const weapon of weapons) {
     (response) => response.blob()
   );
 
+  // Change slug if the weapon is known with a different name in accords-library
+  if (slugSpecialCases.has(weapon.slug)) {
+    weapon.slug = slugSpecialCases.get(weapon.slug);
+  }
+
   const body = new FormData();
 
   // Create the weapon-stories entry
diff --git a/package-lock.json b/package-lock.json
index fb14c24..5d1e827 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,6 +11,9 @@
       "dependencies": {
         "dotenv": "^16.0.3",
         "envsafe": "^2.0.3"
+      },
+      "engines": {
+        "node": ">=18.13.0"
       }
     },
     "node_modules/dotenv": {
diff --git a/package.json b/package.json
index b085631..9f2f6c6 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
   "description": "",
   "license": "MIT",
   "scripts": {
+    "check:weapon-stories-duplicates": "node ./nier-reincarnation/weapon-stories/find-duplicates.mjs",
     "import:weapon-stories": "node ./nier-reincarnation/weapon-stories/index.mjs"
   },
   "dependencies": {