diff --git a/.circleci/config.yml b/.circleci/config.yml
index 0998e3e..e926449 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -24,21 +24,15 @@ commands:
           path: test_output
 
 jobs:
-  test-xcode10-ios12:
+  test-xcode12-ios14:
     macos:
-      xcode: "10.3.0"
+      xcode: "12.5.0"
     steps:
       - test_and_store_results
       
-  test-xcode11-ios13:
-    macos:
-      xcode: "11.0.0"
-    steps:
-      - test_and_store_results
-
-  test-xcode12-ios14:
+  test-xcode13-ios15:
     macos:
-      xcode: "12.4.0"
+      xcode: "13.0.0"
     steps:
       - test_and_store_results
 
@@ -46,6 +40,5 @@ workflows:
   version: 2.1
   build-and-test:
     jobs:
-      - test-xcode10-ios12
-      - test-xcode11-ios13
-      - test-xcode12-ios14
\ No newline at end of file
+      - test-xcode12-ios14
+      - test-xcode13-ios15
\ No newline at end of file
diff --git a/README.md b/README.md
index f5b33c1..1df7eae 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@
 [![Platforms](https://img.shields.io/badge/platform-%20iOS%20|%20macOS%20|%20tvOS%20|%20linux-gray.svg)](https://img.shields.io/badge/platform-%20iOS%20|%20macOS%20|%20tvOS%20|%20linux-gray.svg)
 [![Carthage Compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage)
 [![Swift Package Manager Compatible](https://img.shields.io/badge/SwiftPM-Compatible-brightgreen.svg)](https://github.com/apple/swift-package-manager)
+![Xcode version](https://img.shields.io/badge/Xcode-13.0.0-blue)
 
 Lift is a Swift library for generating and extracting values into and out of JSON-like data structures. Lift was carefully designed to meet the following requirements:
 
diff --git a/Tests/LiftTests/JarTests.swift b/Tests/LiftTests/JarTests.swift
index a9efbbf..63a0094 100644
--- a/Tests/LiftTests/JarTests.swift
+++ b/Tests/LiftTests/JarTests.swift
@@ -254,7 +254,7 @@ class JarTests: XCTestCase {
     }
 
     func testArrayOfTuples() throws {
-        let jar: Jar = [["Adam", 25 as Jar], ["Eve", 20]]
+        let jar: Jar = [["Adam", 25 as Jar], ["Eve", 20 as Jar]]
         typealias NameAndAge = (name: String, age: Int)
         let nameAndAges: [NameAndAge] = try (jar^ as [Jar]).map { jar in try (jar[0]^, jar[1]^) }
         XCTAssertEqual(nameAndAges[0].name, "Adam")