diff --git a/deno.lock b/deno.lock
index 4e3fb07..63da97d 100644
--- a/deno.lock
+++ b/deno.lock
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     "https://esm.sh/v135/@smithy/middleware-endpoint@2.2.1/denonext/middleware-endpoint.mjs": "7840a55e2a6558b50713584b2a9068f0ea311c089a49ca3c95024da1a11d594e",
+    "https://esm.sh/v135/@smithy/middleware-endpoint@3.0.1/denonext/middleware-endpoint.mjs": "bf9be6bcc613941c0a1350b67c4e33862f43c0ea610e38559abccdf37fb78342",
     "https://esm.sh/v135/@smithy/middleware-serde@2.0.14/denonext/middleware-serde.mjs": "27bc3de619201b906636b9ff564a82ae2e772864affd6a1263dc419bd5c8f16e",
+    "https://esm.sh/v135/@smithy/middleware-serde@3.0.0/denonext/middleware-serde.mjs": "7681ebe6e31f3974a04ea7515521c6b1b68aadd26367e105045a1a8e47219890",
+    "https://esm.sh/v135/@smithy/middleware-stack@3.0.0/denonext/middleware-stack.mjs": "9e954876cda37bc3bdd7cef702a0f2cad07e0a01fbf3f621ff3ad699176960dc",
     "https://esm.sh/v135/@smithy/protocol-http@3.0.10/denonext/protocol-http.mjs": "7a6184c624ecaec8050866897aed5c5b77f11df6c7ed1da7dba71248cee43f57",
+    "https://esm.sh/v135/@smithy/protocol-http@4.0.0/denonext/protocol-http.mjs": "70c3ac96dde34152ba20e35c4aa8f1237624156a63565fc1278d669bc1aa4ced",
     "https://esm.sh/v135/@smithy/querystring-builder@2.0.14/denonext/querystring-builder.mjs": "bc4bf2eac1c0f6e0d6eaaf54f15a0894754a41d2e99e0cbaea046d32b0498c83",
+    "https://esm.sh/v135/@smithy/querystring-builder@3.0.0/denonext/querystring-builder.mjs": "d7abeb886cd8805936ee2cef154c13a2116c7934c713b247783d26f9bdd5f526",
     "https://esm.sh/v135/@smithy/querystring-parser@2.0.14/denonext/querystring-parser.mjs": "1d98739f60ad163db362149e62f36bd85de546b6f92526a9d580ee8d35274a8a",
+    "https://esm.sh/v135/@smithy/querystring-parser@3.0.0/denonext/querystring-parser.mjs": "c4ecaaecb22801e82f0fc9bd0f01a3279fead61ee278334c2edbe008adb770fb",
     "https://esm.sh/v135/@smithy/signature-v4@2.0.15/denonext/signature-v4.mjs": "74907d739eca6404fb1b7f05369f4f05408b7340e4516b069806d8fb71fe883a",
+    "https://esm.sh/v135/@smithy/signature-v4@3.0.0/denonext/signature-v4.mjs": "c3013b99f3b7741a4787a38b5e8553befcd27fd3397567da3fb10a9fe24f530a",
+    "https://esm.sh/v135/@smithy/smithy-client@3.1.1/denonext/smithy-client.mjs": "b2e61a9deb80ce5074de3286bfe3142a282a286b2fb561ff0fc37ddbb5ba1c20",
     "https://esm.sh/v135/@smithy/types@2.5.0/denonext/types.mjs": "f273245fd07623d2d932f9ffa6ccdc5c829d3f5e364deec0d64fa2421b94620a",
     "https://esm.sh/v135/@smithy/types@2.6.0/denonext/types.mjs": "e41fa7f64bd6b57da04215ffbe2dc66dc3a79c22c635748a1e01ec4cbc162d29",
+    "https://esm.sh/v135/@smithy/types@3.0.0/denonext/types.mjs": "25efdf4ec5b964611ca47bb80a2b2d849d393367df433c5bb23096d741f85f59",
     "https://esm.sh/v135/@smithy/url-parser@2.0.14/denonext/url-parser.mjs": "e487b2e87633c4198c10f78044fd92bc53d9d5121ab52d000d9512f799ea55bd",
+    "https://esm.sh/v135/@smithy/url-parser@3.0.0/denonext/url-parser.mjs": "15cce7f94afb9e392977b9b565386ea3c64cbf34df41b9f9138f77f56945424c",
+    "https://esm.sh/v135/@smithy/util-base64@3.0.0/denonext/util-base64.mjs": "d6a01faaa94fdbeb4b92b02e91801dfbe241439e37a0edf7d817c59daf66c0e3",
+    "https://esm.sh/v135/@smithy/util-config-provider@3.0.0/denonext/util-config-provider.mjs": "832c0ab1d3b06a51351ea23b33628bd36a37ef570e02e469f6ab39f71d88d7b1",
     "https://esm.sh/v135/@smithy/util-hex-encoding@2.0.0/denonext/util-hex-encoding.mjs": "48b73551d6dc8f87fff840debe36f207f56b04a36c3c21fe2099613457c9d22d",
+    "https://esm.sh/v135/@smithy/util-hex-encoding@3.0.0/denonext/util-hex-encoding.mjs": "cbdd7aabeb3903596980e2903efec3e5501f7e1259fb7b97e327a3b4e635f23c",
     "https://esm.sh/v135/@smithy/util-middleware@2.0.6/denonext/util-middleware.mjs": "0bf990cecfba03d827130507a14bd119c7fbaee4ee8fe057d0904e7741b4fddc",
     "https://esm.sh/v135/@smithy/util-middleware@2.0.7/denonext/util-middleware.mjs": "673799dcf0b06c3d516a3f75c54f82d5a43ba8321015813499cc5c7a80fbcaf6",
+    "https://esm.sh/v135/@smithy/util-middleware@3.0.0/denonext/util-middleware.mjs": "6b85625cb9b9492f81270c274bb5ea491e903e619f89de0d1f5fbba49b418ca4",
+    "https://esm.sh/v135/@smithy/util-stream@3.0.1/denonext/util-stream.mjs": "adc467f8edf75be350d4566ceb13377423b5bb9c152d0438296ed171b9a9e475",
     "https://esm.sh/v135/@smithy/util-uri-escape@2.0.0/denonext/util-uri-escape.mjs": "1e46ae4ab088b9dfcb5dd73715de2a2530747e920cf5b405012aed7d944e2976",
+    "https://esm.sh/v135/@smithy/util-uri-escape@3.0.0/denonext/util-uri-escape.mjs": "df2c80781ede692323dee6e2da3711e7ccc4f7a1cee949b09aba8d1ce15bbe03",
     "https://esm.sh/v135/@smithy/util-utf8@2.0.2/denonext/util-utf8.mjs": "d1869dca8a21b3e6c297cb55f90e1b78bf8f365afd1f173c16d719f28245604b",
+    "https://esm.sh/v135/@smithy/util-utf8@3.0.0/denonext/util-utf8.mjs": "abe704ed8c4266b29906116ef723b98e8729078537b252c9a213ad373559488a",
     "https://esm.sh/v135/aws4@1.12.0/denonext/aws4.mjs": "a9bee7397e4d31e972b28d4cba022e92e82a7e277462662aa4d20642b2847d51",
     "https://esm.sh/v135/tslib@1.14.1/denonext/tslib.mjs": "5e49e8960f064d11fb709e3338f5437e2ede57e7df873a09d7834c2a0bf533f7"
   }
diff --git a/deps.ts b/deps.ts
index abd27b9..862653c 100644
--- a/deps.ts
+++ b/deps.ts
@@ -1,4 +1,4 @@
-export { S3RequestPresigner } from 'https://esm.sh/@aws-sdk/s3-request-presigner@3.456.0'
+export { S3RequestPresigner } from 'https://esm.sh/@aws-sdk/s3-request-presigner@3.587.0'
 export { Buffer } from 'node:buffer'
 export { createHash, createHmac, Hash as NodeHash, Hmac } from 'node:crypto'
 export { default as aws4 } from 'https://esm.sh/aws4@1.12.0'
diff --git a/dev_deps.ts b/dev_deps.ts
index 0da6881..8bf2aa5 100644
--- a/dev_deps.ts
+++ b/dev_deps.ts
@@ -1,2 +1,2 @@
 export { describe, it } from 'https://deno.land/std@0.207.0/testing/bdd.ts'
-export { assertEquals, assertThrows, assertStringIncludes } from 'https://deno.land/std@0.207.0/assert/mod.ts'
+export { assertEquals, assertStringIncludes, assertThrows } from 'https://deno.land/std@0.207.0/assert/mod.ts'
diff --git a/mod.ts b/mod.ts
index 48c00db..8c9c854 100644
--- a/mod.ts
+++ b/mod.ts
@@ -115,7 +115,7 @@ export const headObject = async (
   { bucketName, filename, apiUrl, token }: RequiredArgs & {
     filename: string
   },
-): Promise<[boolean, string | null]> => {
+): Promise<[boolean, string | null, string | null]> => {
   let requestOptions: aws4.Request & { key?: string } = {
     host: `${bucketName}.${apiUrl ?? FILEBASE_API_URL}`,
     path: `/${filename}`,
@@ -133,7 +133,7 @@ export const headObject = async (
     `https://${requestOptions.host}${requestOptions.path}`,
     requestOptions as RequestInit,
   )
-    .then((res) => [res.status == 200, res.headers.get('x-amz-meta-cid')])
+    .then((res) => [res.status == 200, res.headers.get('x-amz-meta-cid'), res.headers.get('content-length')])
 }
 
 export const getObject = async (