diff --git a/Package.swift b/Package.swift
index c16c16c6..bc5fbb4c 100644
--- a/Package.swift
+++ b/Package.swift
@@ -13,7 +13,7 @@ let package = Package(
         .library(name: "JWTKit", targets: ["JWTKit"])
     ],
     dependencies: [
-        .package(url: "https://github.com/apple/swift-crypto.git", from: "3.8.0"),
+        .package(url: "https://github.com/apple/swift-crypto.git", "3.8.0"..<"5.0.0"),
         .package(url: "https://github.com/apple/swift-certificates.git", from: "1.2.0"),
         .package(url: "https://github.com/apple/swift-log.git", from: "1.0.0"),
     ],