diff --git a/Sources/Amplitude/ObjC/ObjCPlugin.swift b/Sources/Amplitude/ObjC/ObjCPlugin.swift
index 1d0d916..4fca3f3 100644
--- a/Sources/Amplitude/ObjC/ObjCPlugin.swift
+++ b/Sources/Amplitude/ObjC/ObjCPlugin.swift
@@ -80,7 +80,7 @@ public class ObjCPlugin: NSObject {
     public init(
         type: PluginType,
         execute: @escaping (ObjCBaseEvent) -> ObjCBaseEvent?,
-        flush: @escaping() -> Void)
+        flush: @escaping () -> Void)
     {
         self.type = type
         self.setup = nil
diff --git a/Tests/AmplitudeTests/Utilities/HttpClientTests.swift b/Tests/AmplitudeTests/Utilities/HttpClientTests.swift
index 63159ac..dee3b56 100644
--- a/Tests/AmplitudeTests/Utilities/HttpClientTests.swift
+++ b/Tests/AmplitudeTests/Utilities/HttpClientTests.swift
@@ -81,7 +81,7 @@ final class HttpClientTests: XCTestCase {
                 return XCTFail("not getting httpError error")
             }
             XCTAssertEqual(code, 400)
-            XCTAssertTrue(String(decoding: data!, as: UTF8.self).contains("Invalid API key: testApiKey"))
+            XCTAssertTrue(String(data: data!, encoding: .utf8)!.contains("Invalid API key: testApiKey"))
             asyncExpectation.fulfill()
         }
         _ = XCTWaiter.wait(for: [asyncExpectation], timeout: 5)