diff --git a/Sources/Uploadcare/Uploadcare.swift b/Sources/Uploadcare/Uploadcare.swift
index 6d7ca596..9898e001 100644
--- a/Sources/Uploadcare/Uploadcare.swift
+++ b/Sources/Uploadcare/Uploadcare.swift
@@ -52,7 +52,7 @@ public class Uploadcare: NSObject {
 	/// Library name
 	private var libraryName = "UploadcareSwift"
 	/// Library version
-	private var libraryVersion = "0.8.1"
+	private var libraryVersion = "0.8.2"
 
 	/// Performs network requests
 	private let requestManager: RequestManager
diff --git a/Sources/Uploadcare/Utils.swift b/Sources/Uploadcare/Utils.swift
index 43915b05..1ded688f 100644
--- a/Sources/Uploadcare/Utils.swift
+++ b/Sources/Uploadcare/Utils.swift
@@ -41,35 +41,35 @@ func detectMimeType(for data: Data) -> String {
 	var bytes = [UInt8].init(repeating: 0, count: data.count)
 	data.copyBytes(to: &bytes, count: data.count)
 
-	if bytes[0...2] == [0xFF, 0xD8, 0xFF] {
+	if data.count > 2, bytes[0...2] == [0xFF, 0xD8, 0xFF] {
 		return "image/jpeg"
 	}
 
-	if bytes[0...3] == [0x89, 0x50, 0x4E, 0x47] {
+	if data.count > 3, bytes[0...3] == [0x89, 0x50, 0x4E, 0x47] {
 		return "image/png"
 	}
 
-	if bytes[0...2] == [0x47, 0x49, 0x46] {
+	if data.count > 2, bytes[0...2] == [0x47, 0x49, 0x46] {
 		return "image/gif"
 	}
 
-	if bytes[8...11] == [0x57, 0x45, 0x42, 0x50] {
+	if data.count > 11, bytes[8...11] == [0x57, 0x45, 0x42, 0x50] {
 		return "image/webp"
 	}
 
-	if (bytes[0...3] == [0x49, 0x49, 0x2A, 0x00] || bytes[0...3] == [0x4D, 0x4D, 0x00, 0x2A]) && bytes[8...9] == [0x43, 0x52] {
+	if data.count > 9, (bytes[0...3] == [0x49, 0x49, 0x2A, 0x00] || bytes[0...3] == [0x4D, 0x4D, 0x00, 0x2A]) && bytes[8...9] == [0x43, 0x52] {
 		return "image/x-canon-cr2"
 	}
 
-	if bytes[0...3] == [0x49, 0x49, 0x2A, 0x00] || bytes[0...3] == [0x4D, 0x4D, 0x00, 0x2A] {
+	if data.count > 3, bytes[0...3] == [0x49, 0x49, 0x2A, 0x00] || bytes[0...3] == [0x4D, 0x4D, 0x00, 0x2A] {
 		return "image/tiff"
 	}
 
-	if bytes[0...1] == [0x42, 0x4D] {
+	if data.count > 1, bytes[0...1] == [0x42, 0x4D] {
 		return "image/bmp"
 	}
 
-	if bytes[0...3] == [0x50, 0x4B, 0x03, 0x04] && bytes[30...57] == [
+	if data.count > 57, bytes[0...3] == [0x50, 0x4B, 0x03, 0x04] && bytes[30...57] == [
 		0x6D, 0x69, 0x6D, 0x65, 0x74, 0x79, 0x70, 0x65, 0x61, 0x70, 0x70, 0x6C,
 		0x69, 0x63, 0x61, 0x74, 0x69, 0x6F, 0x6E, 0x2F, 0x65, 0x70, 0x75, 0x62,
 		0x2B, 0x7A, 0x69, 0x70
@@ -77,35 +77,35 @@ func detectMimeType(for data: Data) -> String {
 		return "application/epub+zip"
 	}
 
-	if bytes[0...1] == [0x50, 0x4B] && (bytes[2] == 0x3 || bytes[2] == 0x5 || bytes[2] == 0x7) && (bytes[3] == 0x4 || bytes[3] == 0x6 || bytes[3] == 0x8) {
+	if data.count > 3, bytes[0...1] == [0x50, 0x4B] && (bytes[2] == 0x3 || bytes[2] == 0x5 || bytes[2] == 0x7) && (bytes[3] == 0x4 || bytes[3] == 0x6 || bytes[3] == 0x8) {
 		return "application/zip"
 	}
 
-	if bytes[257...261] == [0x75, 0x73, 0x74, 0x61, 0x72] {
+	if data.count > 261, bytes[257...261] == [0x75, 0x73, 0x74, 0x61, 0x72] {
 		return "application/x-tar"
 	}
 
-	if bytes[0...5] == [0x52, 0x61, 0x72, 0x21, 0x1A, 0x07] && (bytes[6] == 0x0 || bytes[6] == 0x1) {
+	if data.count > 6, bytes[0...5] == [0x52, 0x61, 0x72, 0x21, 0x1A, 0x07] && (bytes[6] == 0x0 || bytes[6] == 0x1) {
 		return "application/x-rar-compressed"
 	}
 
-	if bytes[0...2] == [0x1F, 0x8B, 0x08] {
+	if data.count > 2, bytes[0...2] == [0x1F, 0x8B, 0x08] {
 		return "application/gzip"
 	}
 
-	if bytes[0...2] == [0x42, 0x5A, 0x68] {
+	if data.count > 2, bytes[0...2] == [0x42, 0x5A, 0x68] {
 		return "application/x-bzip2"
 	}
 
-	if bytes[0...5] == [0x37, 0x7A, 0xBC, 0xAF, 0x27, 0x1C] {
+	if data.count > 5, bytes[0...5] == [0x37, 0x7A, 0xBC, 0xAF, 0x27, 0x1C] {
 		return "application/x-7z-compressed"
 	}
 
-	if bytes[0...1] == [0x78, 0x01] {
+	if data.count > 1, bytes[0...1] == [0x78, 0x01] {
 		return "application/x-apple-diskimage"
 	}
 
-	if (bytes[0...2] == [0x00, 0x00, 0x00] && (bytes[3] == 0x18 || bytes[3] == 0x20) && bytes[4...7] == [0x66, 0x74, 0x79, 0x70]) ||
+	if data.count > 27, (bytes[0...2] == [0x00, 0x00, 0x00] && (bytes[3] == 0x18 || bytes[3] == 0x20) && bytes[4...7] == [0x66, 0x74, 0x79, 0x70]) ||
 		(bytes[0...3] == [0x33, 0x67, 0x70, 0x35]) ||
   (bytes[0...11] == [0x00, 0x00, 0x00, 0x1C, 0x66, 0x74, 0x79, 0x70, 0x6D, 0x70, 0x34, 0x32] &&
 	bytes[16...27] == [0x6D, 0x70, 0x34, 0x31, 0x6D, 0x70, 0x34, 0x32, 0x69, 0x73, 0x6F, 0x6D]) ||
@@ -114,71 +114,71 @@ func detectMimeType(for data: Data) -> String {
 		return "video/mp4"
 	}
 
-	if bytes[0...10] == [0x00, 0x00, 0x00, 0x1C, 0x66, 0x74, 0x79, 0x70, 0x4D, 0x34, 0x56] {
+	if data.count > 10, bytes[0...10] == [0x00, 0x00, 0x00, 0x1C, 0x66, 0x74, 0x79, 0x70, 0x4D, 0x34, 0x56] {
 		return "video/x-m4v"
 	}
 
-	if bytes[0...7] == [0x00, 0x00, 0x00, 0x14, 0x66, 0x74, 0x79, 0x70] {
+	if data.count > 7, bytes[0...7] == [0x00, 0x00, 0x00, 0x14, 0x66, 0x74, 0x79, 0x70] {
 		return "video/quicktime"
 	}
 
-	if bytes[0...3] == [0x52, 0x49, 0x46, 0x46] && bytes[8...10] == [0x41, 0x56, 0x49] {
+	if data.count > 3, bytes[0...3] == [0x52, 0x49, 0x46, 0x46] && bytes[8...10] == [0x41, 0x56, 0x49] {
 		return "video/x-msvideo"
 	}
 
-	if bytes[0...9] == [0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xA6, 0xD9] {
+	if data.count > 9, bytes[0...9] == [0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11, 0xA6, 0xD9] {
 		return "video/x-ms-wmv"
 	}
 
-	if bytes[0...2] == [0x49, 0x44, 0x33] || bytes[0...1] == [0xFF, 0xFB] {
+	if data.count > 2, bytes[0...2] == [0x49, 0x44, 0x33] || bytes[0...1] == [0xFF, 0xFB] {
 		return "audio/mpeg"
 	}
 
-	if bytes[0...3] == [0x4D, 0x34, 0x41, 0x20] || bytes[4...10] == [0x66, 0x74, 0x79, 0x70, 0x4D, 0x34, 0x41] {
+	if data.count > 10, bytes[0...3] == [0x4D, 0x34, 0x41, 0x20] || bytes[4...10] == [0x66, 0x74, 0x79, 0x70, 0x4D, 0x34, 0x41] {
 		return "audio/m4a"
 	}
 
-	if bytes[28...35] == [0x4F, 0x70, 0x75, 0x73, 0x48, 0x65, 0x61, 0x64] {
+	if data.count > 35, bytes[28...35] == [0x4F, 0x70, 0x75, 0x73, 0x48, 0x65, 0x61, 0x64] {
 		return "audio/opus"
 	}
 
-	if bytes[0...3] == [0x4F, 0x67, 0x67, 0x53] {
+	if data.count > 3, bytes[0...3] == [0x4F, 0x67, 0x67, 0x53] {
 		return "audio/ogg"
 	}
 
-	if bytes[0...3] == [0x66, 0x4C, 0x61, 0x43] {
+	if data.count > 3, bytes[0...3] == [0x66, 0x4C, 0x61, 0x43] {
 		return "audio/x-flac"
 	}
 
-	if bytes[0...3] == [0x52, 0x49, 0x46, 0x46] && bytes[8...11] == [0x57, 0x41, 0x56, 0x45] {
+	if data.count > 3, bytes[0...3] == [0x52, 0x49, 0x46, 0x46] && bytes[8...11] == [0x57, 0x41, 0x56, 0x45] {
 		return "audio/x-wav"
 	}
 
-	if bytes[0...3] == [0x25, 0x50, 0x44, 0x46] {
+	if data.count > 3, bytes[0...3] == [0x25, 0x50, 0x44, 0x46] {
 		return "application/pdf"
 	}
 
-	if bytes[0...1] == [0x4D, 0x5A] {
+	if data.count > 1, bytes[0...1] == [0x4D, 0x5A] {
 		return "application/x-msdownload"
 	}
 
-	if bytes[0...4] == [0x7B, 0x5C, 0x72, 0x74, 0x66] {
+	if data.count > 4, bytes[0...4] == [0x7B, 0x5C, 0x72, 0x74, 0x66] {
 		return "application/rtf"
 	}
 
-	if bytes[0...4] == [0x00, 0x01, 0x00, 0x00, 0x00] {
+	if data.count > 4, bytes[0...4] == [0x00, 0x01, 0x00, 0x00, 0x00] {
 		return "application/font-sfnt"
 	}
 
-	if bytes[0...4] == [0x4F, 0x54, 0x54, 0x4F, 0x00] {
+	if data.count > 4, bytes[0...4] == [0x4F, 0x54, 0x54, 0x4F, 0x00] {
 		return "application/font-sfnt"
 	}
 
-	if bytes[0...7] == [0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1] {
+	if data.count > 7, bytes[0...7] == [0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1] {
 		return "application/x-msi"
 	}
 
-	if bytes[0] == 0x46 {
+	if data.count > 0, bytes[0] == 0x46 {
 		return "text/plain"
 	}
 
diff --git a/Sources/Uploadcare/requestManager/RequestManager.swift b/Sources/Uploadcare/requestManager/RequestManager.swift
index 1e0eb585..6712192e 100644
--- a/Sources/Uploadcare/requestManager/RequestManager.swift
+++ b/Sources/Uploadcare/requestManager/RequestManager.swift
@@ -34,7 +34,7 @@ internal class RequestManager {
 	/// Library name
 	private var libraryName = "UploadcareSwift"
 	/// Library version
-	private var libraryVersion = "0.8.1"
+	private var libraryVersion = "0.8.2"
 	/// API public key
 	private var publicKey: String
 	/// Secret Key. Optional. Is used for authorization
diff --git a/Uploadcare.podspec b/Uploadcare.podspec
index 4868bf65..57fe5417 100644
--- a/Uploadcare.podspec
+++ b/Uploadcare.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'Uploadcare'
-  s.version          = '0.8.1'
+  s.version          = '0.8.2'
   s.summary          = 'Swift integration for Uploadcare'
 
 # This description is used to generate tags and improve search results.