diff --git a/Base58Swift/Base58.swift b/Base58Swift/Base58.swift
index 6139dff..42b0bde 100644
--- a/Base58Swift/Base58.swift
+++ b/Base58Swift/Base58.swift
@@ -1,8 +1,8 @@
 // Copyright Keefer Taylor, 2019.
 
-import BigInt
-import CommonCrypto
+@preconcurrency import BigInt
 import Foundation
+import Crypto
 
 /// A static utility class which provides Base58 encoding and decoding functionality.
 public enum Base58 {
@@ -96,12 +96,6 @@ public enum Base58 {
   /// - Parameter data: Input data to hash.
   /// - Returns: A sha256 hash of the input data.
   private static func sha256(_ data: [UInt8]) -> [UInt8] {
-    let res = NSMutableData(length: Int(CC_SHA256_DIGEST_LENGTH))!
-    CC_SHA256(
-      (Data(data) as NSData).bytes,
-      CC_LONG(data.count),
-      res.mutableBytes.assumingMemoryBound(to: UInt8.self)
-    )
-    return [UInt8](res as Data)
+    Array(SHA256.hash(data: Data(data)))
   }
 }
diff --git a/Package.resolved b/Package.resolved
index 6e8e5ed..602d54a 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -1,25 +1,24 @@
 {
-  "object": {
-    "pins": [
-      {
-        "package": "BigInt",
-        "repositoryURL": "https://github.com/attaswift/BigInt.git",
-        "state": {
-          "branch": null,
-          "revision": "018a5925f60f9e0523edd261de394a0898fe95b7",
-          "version": "3.1.0"
-        }
-      },
-      {
-        "package": "SipHash",
-        "repositoryURL": "https://github.com/attaswift/SipHash",
-        "state": {
-          "branch": null,
-          "revision": "e325083424688055363bbfcb7f1a440d7d7a1bae",
-          "version": "1.2.2"
-        }
+  "originHash" : "0f727c2b567d2f9854922a6efcc01d964a34c3f005a4ec264cc20c4cc675a0f6",
+  "pins" : [
+    {
+      "identity" : "bigint",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/attaswift/BigInt.git",
+      "state" : {
+        "revision" : "a7ee11486233ba45f5ceee0b8cb3d6629ed450ef",
+        "version" : "5.5.0"
       }
-    ]
-  },
-  "version": 1
+    },
+    {
+      "identity" : "swift-crypto",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/apple/swift-crypto.git",
+      "state" : {
+        "revision" : "cc76b894169a3c86b71bac10c78a4db6beb7a9ad",
+        "version" : "3.2.0"
+      }
+    }
+  ],
+  "version" : 3
 }
diff --git a/Package.swift b/Package.swift
index 3370474..4a418f5 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,20 +1,28 @@
-// swift-tools-version:5.0
+// swift-tools-version:6.0
 import PackageDescription
 
 let package = Package(
     name: "Base58Swift",
+    platforms: [
+        .macOS(.v10_15),
+        .iOS(.v13),
+    ],
     products: [
         .library(
             name: "Base58Swift",
             targets: ["Base58Swift"])
     ],
     dependencies: [
-      .package(url: "https://github.com/attaswift/BigInt.git", from: "5.0.0")
+      .package(url: "https://github.com/attaswift/BigInt.git", from: "5.0.0"),
+      .package(url: "https://github.com/apple/swift-crypto.git", from: "3.0.0"),
     ],
     targets: [
         .target(
             name: "Base58Swift",
-            dependencies: ["BigInt"],
+            dependencies: [
+                "BigInt",
+                .product(name: "Crypto", package: "swift-crypto")
+            ],
             path: "Base58Swift"),
         .testTarget(
             name: "base58swiftTests",