diff --git a/.swift-version b/.swift-version
deleted file mode 100644
index 819e07a..0000000
--- a/.swift-version
+++ /dev/null
@@ -1 +0,0 @@
-5.0
diff --git a/.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata b/.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..919434a
--- /dev/null
+++ b/.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+
+
+   
+   
+
diff --git a/Example/SwiftCronExample.xcodeproj/project.pbxproj b/Example/SwiftCronExample.xcodeproj/project.pbxproj
index dee58cc..3c125e5 100644
--- a/Example/SwiftCronExample.xcodeproj/project.pbxproj
+++ b/Example/SwiftCronExample.xcodeproj/project.pbxproj
@@ -499,7 +499,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 			};
 			name = Debug;
 		};
@@ -548,7 +548,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 				VALIDATE_PRODUCT = YES;
 			};
 			name = Release;
@@ -564,7 +564,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.Rush42.SwiftCronExample;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 			};
 			name = Debug;
 		};
@@ -579,7 +579,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = com.Rush42.SwiftCronExample;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 			};
 			name = Release;
 		};
@@ -597,7 +597,7 @@
 				SWIFT_OBJC_BRIDGING_HEADER = "SwiftCronExampleTests/SwiftCronExampleTests-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/SwiftCronExample.app/SwiftCronExample";
 			};
 			name = Debug;
@@ -615,7 +615,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "SwiftCronExampleTests/SwiftCronExampleTests-Bridging-Header.h";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/SwiftCronExample.app/SwiftCronExample";
 			};
 			name = Release;
diff --git a/Example/SwiftCronExample/Assets.xcassets/AppIcon.appiconset/Contents.json b/Example/SwiftCronExample/Assets.xcassets/AppIcon.appiconset/Contents.json
index 118c98f..8121323 100644
--- a/Example/SwiftCronExample/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/Example/SwiftCronExample/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -2,37 +2,52 @@
   "images" : [
     {
       "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "2x"
+      "scale" : "2x",
+      "size" : "20x20"
     },
     {
       "idiom" : "iphone",
-      "size" : "29x29",
-      "scale" : "3x"
+      "scale" : "3x",
+      "size" : "20x20"
     },
     {
       "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "2x"
+      "scale" : "2x",
+      "size" : "29x29"
     },
     {
       "idiom" : "iphone",
-      "size" : "40x40",
-      "scale" : "3x"
+      "scale" : "3x",
+      "size" : "29x29"
     },
     {
       "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "2x"
+      "scale" : "2x",
+      "size" : "40x40"
     },
     {
       "idiom" : "iphone",
-      "size" : "60x60",
-      "scale" : "3x"
+      "scale" : "3x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "scale" : "1x",
+      "size" : "1024x1024"
     }
   ],
   "info" : {
-    "version" : 1,
-    "author" : "xcode"
+    "author" : "xcode",
+    "version" : 1
   }
-}
\ No newline at end of file
+}
diff --git a/Example/SwiftCronExampleTests/SwiftCronExampleTests.swift b/Example/SwiftCronExampleTests/SwiftCronExampleTests.swift
index c2fbd88..2dbf8dc 100644
--- a/Example/SwiftCronExampleTests/SwiftCronExampleTests.swift
+++ b/Example/SwiftCronExampleTests/SwiftCronExampleTests.swift
@@ -28,7 +28,7 @@ class SwiftCronExampleTests: XCTestCase {
 
     func testPerformanceExample() {
         // This is an example of a performance test case.
-        self.measureBlock {
+        measure {
             // Put the code you want to measure the time of here.
         }
     }
diff --git a/Example/SwiftCronExampleTests/Tests.swift b/Example/SwiftCronExampleTests/Tests.swift
index 6d81526..746778a 100644
--- a/Example/SwiftCronExampleTests/Tests.swift
+++ b/Example/SwiftCronExampleTests/Tests.swift
@@ -33,16 +33,16 @@ class TableOfContentsSpec: QuickSpec {
 				it("will eventually pass") {
 					var time = "passing"
 
-					dispatch_async(dispatch_get_main_queue()) {
-						time = "done"
-					}
+                    DispatchQueue.main.async {
+                            time = "done"
+                    }
 
-					waitUntil { done in
-						NSThread.sleepForTimeInterval(0.5)
-						expect(time) == "done"
+                    waitUntil { done in
+                            Thread.sleep(forTimeInterval: 0.5)
+                            expect(time) == "done"
 
-						done()
-					}
+                            done()
+                    }
 				}
 			}
 		}
diff --git a/Package.swift b/Package.swift
index 6cff420..cd99706 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.0
+// swift-tools-version:6.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 import PackageDescription
 
@@ -11,5 +11,5 @@ let package = Package(
         targets: [
         .target(name: "SwiftCron", dependencies: [], path: "Sources/")
     ],
-    swiftLanguageVersions: [.v5]
+    swiftLanguageModes: [.v5, .v6]
 )
diff --git a/Sources/CronRepresentation.swift b/Sources/CronRepresentation.swift
index 75eac1a..2e55644 100644
--- a/Sources/CronRepresentation.swift
+++ b/Sources/CronRepresentation.swift
@@ -9,8 +9,10 @@
 import Foundation
 
 enum CronField: Int {
-	case minute, hour, day, month, weekday, year
-	private static let fieldCheckers: Array = [MinutesField(), HoursField(), DayOfMonthField(), MonthField(), DayOfWeekField(), YearField()]
+    case minute, hour, day, month, weekday, year
+    private static var fieldCheckers: [FieldCheckerInterface] {
+        [MinutesField(), HoursField(), DayOfMonthField(), MonthField(), DayOfWeekField(), YearField()]
+    }
 
 	func getFieldChecker() -> FieldCheckerInterface {
 		return CronField.fieldCheckers[rawValue]
diff --git a/Sources/StringValidator.swift b/Sources/StringValidator.swift
index bbb8e49..84a9cef 100644
--- a/Sources/StringValidator.swift
+++ b/Sources/StringValidator.swift
@@ -23,12 +23,7 @@ struct StringValidator {
     }
 
     private static func validate(_ value: String, regex: String) -> Bool {
-        #if os(Linux)
-            typealias Regex = RegularExpression
-        #else
-            typealias Regex = NSRegularExpression
-        #endif
-
+        typealias Regex = NSRegularExpression
         guard let regex = try? Regex(pattern: regex, options: []) else { return false }
         return regex.numberOfMatches(in: value, options: [], range: NSMakeRange(0, value.count)) > 0
     }
diff --git a/SwiftCron.podspec b/SwiftCron.podspec
index 22b9b2d..8675fb2 100644
--- a/SwiftCron.podspec
+++ b/SwiftCron.podspec
@@ -13,8 +13,9 @@ A cron expression parser written in Swift that can take a cron string and give y
   s.author           = { "Keegan Rush" => "thecodedself@gmail.com" }
   s.source           = { :git => "https://github.com/TheCodedSelf/SwiftCron.git", :tag => "#{s.version}" }
   s.social_media_url = 'https://twitter.com/RushKeegan'
+  s.swift_versions   = ['6.0']
 
-  s.ios.deployment_target = '9.0'
+  s.ios.deployment_target = '13.0'
 
   s.source_files = 'Sources/**/*'
 end
diff --git a/SwiftCron.xcodeproj/project.pbxproj b/SwiftCron.xcodeproj/project.pbxproj
index 6837b48..30c0c2d 100644
--- a/SwiftCron.xcodeproj/project.pbxproj
+++ b/SwiftCron.xcodeproj/project.pbxproj
@@ -265,14 +265,14 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -322,12 +322,12 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -352,7 +352,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 			};
 			name = Debug;
 		};
@@ -372,7 +372,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 			};
 			name = Release;
 		};