diff --git a/Sources/HMAC.swift b/Sources/HMAC.swift
index c676d193..5cab3a7c 100644
--- a/Sources/HMAC.swift
+++ b/Sources/HMAC.swift
@@ -35,7 +35,7 @@ open class HMAC {
 
         let ipadAndMessageHash = SHA1(ipad + message).calculate()
         let mac = SHA1(opad + ipadAndMessageHash).calculate()
-        var hashedData: Data? = nil
+        var hashedData: Data?
         mac.withUnsafeBufferPointer { pointer in
             guard let baseAddress = pointer.baseAddress else { return }
             hashedData = Data(bytes: baseAddress, count: mac.count)
diff --git a/Sources/Handler/ASWebAuthenticationURLHandler.swift b/Sources/Handler/ASWebAuthenticationURLHandler.swift
index 6f144648..4b42e4c1 100644
--- a/Sources/Handler/ASWebAuthenticationURLHandler.swift
+++ b/Sources/Handler/ASWebAuthenticationURLHandler.swift
@@ -48,7 +48,7 @@ open class ASWebAuthenticationURLHandler: OAuthSwiftURLHandlerType {
         })
         webAuthSession.presentationContextProvider = presentationContextProvider
         webAuthSession.prefersEphemeralWebBrowserSession = prefersEphemeralWebBrowserSession
-        
+
         _ = webAuthSession.start()
     }
 }
diff --git a/Sources/OAuthSwiftCredential.swift b/Sources/OAuthSwiftCredential.swift
index 2e4aea55..d8b6505e 100644
--- a/Sources/OAuthSwiftCredential.swift
+++ b/Sources/OAuthSwiftCredential.swift
@@ -27,7 +27,7 @@ public enum OAuthSwiftHashMethod: String {
         switch self {
         case .sha1:
             let mac = SHA1(data).calculate()
-            var hashedData: Data? = nil
+            var hashedData: Data?
             mac.withUnsafeBufferPointer { pointer in
                 guard let baseAddress = pointer.baseAddress else { return }
                 hashedData = Data(bytes: baseAddress, count: mac.count)