diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7cb14a1..944d968 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+5.1.2
+=====
+
+* (bug) Consistently use `string`s for IDs from Storyblok.
+
+
 5.1.1
 =====
 
diff --git a/src/Api/Data/Asset/AssetFolder.php b/src/Api/Data/Asset/AssetFolder.php
index 01fa386..51d0840 100644
--- a/src/Api/Data/Asset/AssetFolder.php
+++ b/src/Api/Data/Asset/AssetFolder.php
@@ -12,7 +12,7 @@ class AssetFolder
 	/**
 	 */
 	public function __construct (
-		public readonly int $id,
+		public readonly string $id,
 		public readonly string $name,
 		public readonly string $uuid,
 		public private(set) array $children = [],
diff --git a/src/Api/Data/Asset/AssetFolderTree.php b/src/Api/Data/Asset/AssetFolderTree.php
index cec6aa8..c76a233 100644
--- a/src/Api/Data/Asset/AssetFolderTree.php
+++ b/src/Api/Data/Asset/AssetFolderTree.php
@@ -7,7 +7,7 @@
  */
 readonly class AssetFolderTree
 {
-	/** @var array<int, AssetFolder> */
+	/** @var array<string, AssetFolder> */
 	private array $idMap;
 
 	/** @var array<string, AssetFolder> */
@@ -46,7 +46,7 @@ public function __construct (
 	/**
 	 *
 	 */
-	public function getFolderById (int $id) : ?AssetFolder
+	public function getFolderById (int|string $id) : ?AssetFolder
 	{
 		return $this->idMap[$id] ?? null;
 	}
diff --git a/src/Api/ManagementApi.php b/src/Api/ManagementApi.php
index fe4e4e4..0fc7123 100644
--- a/src/Api/ManagementApi.php
+++ b/src/Api/ManagementApi.php
@@ -579,7 +579,7 @@ public function fetchAssetFolders () : AssetFolderTree
 		foreach ($response["asset_folders"] as $folderData)
 		{
 			$folders[$folderData["id"]] = new AssetFolder(
-				id: $folderData["id"],
+				id: (string) $folderData["id"],
 				name: $folderData["name"],
 				uuid: $folderData["uuid"],
 			);