diff --git a/Sources/mas/AppStore/ISStoreAccount.swift b/Sources/mas/AppStore/ISStoreAccount.swift
index 1c8afa0..f0d27ec 100644
--- a/Sources/mas/AppStore/ISStoreAccount.swift
+++ b/Sources/mas/AppStore/ISStoreAccount.swift
@@ -47,7 +47,7 @@ extension ISStoreAccount: StoreAccount {
 
                     let password =
                         password.isEmpty && !systemDialog
-                        ? String(validatingUTF8: getpass("Password: "))!
+                        ? String(validatingUTF8: getpass("Password: ")) ?? ""
                         : password
 
                     guard !password.isEmpty || systemDialog else {
diff --git a/Sources/mas/Commands/Open.swift b/Sources/mas/Commands/Open.swift
index 4ae4247..82e98de 100644
--- a/Sources/mas/Commands/Open.swift
+++ b/Sources/mas/Commands/Open.swift
@@ -44,15 +44,18 @@ extension Mas {
                 }
                 url.scheme = masScheme
 
+                guard let urlString = url.string else {
+                    printError("Unable to construct URL")
+                    throw MASError.searchFailed
+                }
                 do {
-                    try openCommand.run(arguments: url.string!)
+                    try openCommand.run(arguments: urlString)
                 } catch {
                     printError("Unable to launch open command")
                     throw MASError.searchFailed
                 }
                 if openCommand.failed {
-                    let reason = openCommand.process.terminationReason
-                    printError("Open failed: (\(reason)) \(openCommand.stderr)")
+                    printError("Open failed: (\(openCommand.process.terminationReason)) \(openCommand.stderr)")
                     throw MASError.searchFailed
                 }
             } catch {
diff --git a/Sources/mas/Commands/Reset.swift b/Sources/mas/Commands/Reset.swift
index 6698780..76a32bd 100644
--- a/Sources/mas/Commands/Reset.swift
+++ b/Sources/mas/Commands/Reset.swift
@@ -61,7 +61,7 @@ extension Mas {
 
             if kill.terminationStatus != 0, debug {
                 let output = stderr.fileHandleForReading.readDataToEndOfFile()
-                printError("killall failed:\n\(String(data: output, encoding: String.Encoding.utf8)!)")
+                printError("killall failed:\n\(String(data: output, encoding: .utf8) ?? "Error info not available")")
             }
 
             // Wipe Download Directory
diff --git a/Sources/mas/Controllers/StoreSearch.swift b/Sources/mas/Controllers/StoreSearch.swift
index 12a46e0..166e7fd 100644
--- a/Sources/mas/Controllers/StoreSearch.swift
+++ b/Sources/mas/Controllers/StoreSearch.swift
@@ -78,16 +78,18 @@ extension StoreSearch {
             return nil
         }
 
-        components.queryItems = [
+        var queryItems = [
             URLQueryItem(name: "media", value: "software"),
             URLQueryItem(name: "entity", value: entity.rawValue),
         ]
 
         if let country {
-            components.queryItems!.append(URLQueryItem(name: "country", value: country))
+            queryItems.append(URLQueryItem(name: "country", value: country))
         }
 
-        components.queryItems!.append(URLQueryItem(name: action.queryItemName, value: queryItemValue))
+        queryItems.append(URLQueryItem(name: action.queryItemName, value: queryItemValue))
+
+        components.queryItems = queryItems
 
         return components.url
     }