diff --git a/Tests/ArgumentEncodingTests/ArgumentGroupTests.swift b/Tests/ArgumentEncodingTests/ArgumentGroupTests.swift
index f7d2d28..d086268 100644
--- a/Tests/ArgumentEncodingTests/ArgumentGroupTests.swift
+++ b/Tests/ArgumentEncodingTests/ArgumentGroupTests.swift
@@ -250,28 +250,14 @@ final class ArgumentGroupTests: XCTestCase {
     }
 }
 
-#if swift(>=6) && swift(<6.0.2)
-    extension Array: @retroactive ArgumentGroup, @retroactive FormatterNode {
-        public var flagFormatter: ArgumentEncoding.FlagFormatter { FlagFormatter(prefix: .doubleDash) }
+extension Array: ArgumentGroup, FormatterNode {
+    public var flagFormatter: ArgumentEncoding.FlagFormatter { FlagFormatter(prefix: .doubleDash) }
 
-        public var optionFormatter: ArgumentEncoding.OptionFormatter { OptionFormatter(prefix: .doubleDash) }
-    }
-
-    extension Dictionary: @retroactive ArgumentGroup, @retroactive FormatterNode {
-        public var flagFormatter: ArgumentEncoding.FlagFormatter { FlagFormatter(prefix: .doubleDash) }
-
-        public var optionFormatter: ArgumentEncoding.OptionFormatter { OptionFormatter(prefix: .doubleDash) }
-    }
-#else
-    extension Array: ArgumentGroup, FormatterNode {
-        public var flagFormatter: ArgumentEncoding.FlagFormatter { FlagFormatter(prefix: .doubleDash) }
-
-        public var optionFormatter: ArgumentEncoding.OptionFormatter { OptionFormatter(prefix: .doubleDash) }
-    }
+    public var optionFormatter: ArgumentEncoding.OptionFormatter { OptionFormatter(prefix: .doubleDash) }
+}
 
-    extension Dictionary: ArgumentGroup, FormatterNode {
-        public var flagFormatter: ArgumentEncoding.FlagFormatter { FlagFormatter(prefix: .doubleDash) }
+extension Dictionary: ArgumentGroup, FormatterNode {
+    public var flagFormatter: ArgumentEncoding.FlagFormatter { FlagFormatter(prefix: .doubleDash) }
 
-        public var optionFormatter: ArgumentEncoding.OptionFormatter { OptionFormatter(prefix: .doubleDash) }
-    }
-#endif
+    public var optionFormatter: ArgumentEncoding.OptionFormatter { OptionFormatter(prefix: .doubleDash) }
+}