diff --git a/deno.lock b/deno.lock
index debba79..370fed1 100644
--- a/deno.lock
+++ b/deno.lock
@@ -69,7 +69,9 @@
     "https://deno.land/x/ts_essentials@v9.1.2/mod.ts": "ffae461c16d4a1bf24c2179582ab8d5c81ad0df61e4ae2fba51ef5e5bdf90345"
   },
   "npm": {
-    "specifiers": { "mongodb": "mongodb@5.1.0" },
+    "specifiers": {
+      "mongodb": "mongodb@5.1.0"
+    },
     "packages": {
       "@types/node@18.14.2": {
         "integrity": "sha512-1uEQxww3DaghA0RxqHx0O0ppVlo43pJhepY51OxuQIKHpjbnYLA7vcdwioNPzIqmC2u3I/dmylcqjlh0e7AyUA==",
@@ -120,7 +122,9 @@
       },
       "saslprep@1.0.3": {
         "integrity": "sha512-/MY/PEMbk2SuY5sScONwhUDsV2p77Znkb/q3nSVstq/yQzYJOH/Azh29p9oJLsl3LnQwSvZDKagDGBsBwSooag==",
-        "dependencies": { "sparse-bitfield": "sparse-bitfield@3.0.3" }
+        "dependencies": {
+          "sparse-bitfield": "sparse-bitfield@3.0.3"
+        }
       },
       "smart-buffer@4.2.0": {
         "integrity": "sha512-94hK0Hh8rPqQl2xXc3HsaBoOXKV20MToPkcXvwbISWLEs+64sBq5kFgn2kJDHb1Pry9yrP0dxrCI9RRci7RXKg==",
@@ -135,11 +139,15 @@
       },
       "sparse-bitfield@3.0.3": {
         "integrity": "sha512-kvzhi7vqKTfkh0PZU+2D2PIllw2ymqJKujUcyPMd9Y75Nv4nPbGJZXNhxsgdQab2BmlDct1YnfQCguEvHr7VsQ==",
-        "dependencies": { "memory-pager": "memory-pager@1.5.0" }
+        "dependencies": {
+          "memory-pager": "memory-pager@1.5.0"
+        }
       },
       "tr46@3.0.0": {
         "integrity": "sha512-l7FvfAHlcmulp8kr+flpQZmVwtu7nfRV7NZujtN0OqES8EL4O4e0qqzL0DC5gAvx/ZC/9lk6rhcUwYvkBnBnYA==",
-        "dependencies": { "punycode": "punycode@2.3.0" }
+        "dependencies": {
+          "punycode": "punycode@2.3.0"
+        }
       },
       "webidl-conversions@7.0.0": {
         "integrity": "sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==",
diff --git a/scripts/fix-stored-dates.ts b/scripts/fix-stored-dates.ts
new file mode 100644
index 0000000..45a8138
--- /dev/null
+++ b/scripts/fix-stored-dates.ts
@@ -0,0 +1,41 @@
+import { MongoDB } from "../deps.ts";
+import { DEFAULT_ENV } from "../src/env.ts";
+import { MongoDBExporter } from "../src/exporters/mongodb.ts";
+import { FileStateBackend, Profile } from "../src/state.ts";
+
+const env = DEFAULT_ENV;
+const stateBackend = new FileStateBackend("./profile.json");
+const profile = new Profile({ stateBackend, env });
+await profile.readState();
+
+if (!profile.state.mongoDbUri) {
+	console.error("MongoDB URI not set");
+	Deno.exit(1);
+}
+
+const mongoDbClient = new MongoDB.MongoClient(profile.state.mongoDbUri);
+const battlesCollection = mongoDbClient.db("splashcat").collection("battles");
+
+const filter = {
+	"splatNetData.playedTime": {
+		$type: "string"
+	}
+};
+
+const cursor = battlesCollection.find(filter);
+
+const oldDocuments = await battlesCollection.countDocuments(filter);
+
+console.log(`Found ${oldDocuments} old battles to update...`);
+
+for await (const doc of cursor) {
+	const { splatNetData, _id } = doc;
+
+	await battlesCollection.updateOne({ _id }, { "$set": {
+		"splatNetData.playedTime": new Date(splatNetData.playedTime),
+	}});
+
+	console.log(`Updated ${splatNetData.playedTime} to ${new Date(splatNetData.playedTime)}`);
+}
+
+console.log("Done!")
\ No newline at end of file