diff --git a/Package.swift b/Package.swift
index c44aaf5..5ba6d24 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.9
+// swift-tools-version:6.0
 
 //===----------------------------------------------------------------------===//
 //
@@ -24,8 +24,7 @@
 import CompilerPluginSupport
 import PackageDescription
 
-let swiftSettings: [SwiftSetting] = [.enableExperimentalFeature("StrictConcurrency=complete"),
-                                    ]
+let swiftSettings: [SwiftSetting] = []
 
 let package = Package(
     name: "dynamo-db-tables",
@@ -65,6 +64,5 @@ let package = Package(
                 .product(name: "SwiftSyntaxMacrosTestSupport", package: "swift-syntax"),
             ],
             swiftSettings: swiftSettings),
-    ],
-    swiftLanguageVersions: [.v5]
+    ]
 )
diff --git a/Sources/DynamoDBTables/AWSDynamoDBCompositePrimaryKeyTable+updateItems.swift b/Sources/DynamoDBTables/AWSDynamoDBCompositePrimaryKeyTable+updateItems.swift
index ae017fe..3b21756 100644
--- a/Sources/DynamoDBTables/AWSDynamoDBCompositePrimaryKeyTable+updateItems.swift
+++ b/Sources/DynamoDBTables/AWSDynamoDBCompositePrimaryKeyTable+updateItems.swift
@@ -556,11 +556,11 @@ public extension AWSDynamoDBCompositePrimaryKeyTable {
 
         var errorCodeSet: Set<DynamoDBClientTypes.BatchStatementErrorCodeEnum> = Set()
         // TODO: Remove errorCodeSet and return errorSet instead
-        var errorSet: Set<DynamoDBClientTypes.BatchStatementError> = Set()
+        var errorSet: Set<InternalBatchStatementError> = Set()
         result.responses?.forEach { response in
             if let error = response.error, let code = error.code {
                 errorCodeSet.insert(code)
-                errorSet.insert(error)
+                errorSet.insert(.init(code: error.code, item: error.item, message: error.message))
             }
         }
 
@@ -588,17 +588,13 @@ public extension AWSDynamoDBCompositePrimaryKeyTable {
     }
 }
 
-extension DynamoDBClientTypes.BatchStatementError: Equatable {
-    public static func == (lhs: DynamoDBClientTypes.BatchStatementError, rhs: DynamoDBClientTypes.BatchStatementError) -> Bool {
-        guard lhs.code == rhs.code, lhs.item == rhs.item, lhs.message == rhs.message else {
-            return false
-        }
-
-        return true
-    }
+struct InternalBatchStatementError: Equatable {
+    var code: DynamoDBClientTypes.BatchStatementErrorCodeEnum?
+    var item: [Swift.String: DynamoDBClientTypes.AttributeValue]?
+    var message: Swift.String?
 }
 
-extension DynamoDBClientTypes.BatchStatementError: Hashable {
+extension InternalBatchStatementError: Hashable {
     public func hash(into hasher: inout Hasher) {
         hasher.combine(self.code)
         hasher.combine(self.message)
diff --git a/Sources/DynamoDBTablesMacros/PolymorphicTransactionConstraintEntryMacro.swift b/Sources/DynamoDBTablesMacros/PolymorphicTransactionConstraintEntryMacro.swift
index b9d0262..898f3e8 100644
--- a/Sources/DynamoDBTablesMacros/PolymorphicTransactionConstraintEntryMacro.swift
+++ b/Sources/DynamoDBTablesMacros/PolymorphicTransactionConstraintEntryMacro.swift
@@ -19,13 +19,13 @@ import SwiftSyntax
 import SwiftSyntaxMacros
 
 struct PolymorphicTransactionConstraintEntryMacroAttributes: MacroAttributes {
-    static var macroName: String = "PolymorphicTransactionConstraintEntry"
+    static let macroName: String = "PolymorphicTransactionConstraintEntry"
 
-    static var protocolName: String = "PolymorphicTransactionConstraintEntry"
+    static let protocolName: String = "PolymorphicTransactionConstraintEntry"
 
-    static var transformType: String = "WriteTransactionConstraintType"
+    static let transformType: String = "WriteTransactionConstraintType"
 
-    static var contextType: String = "PolymorphicWriteEntryContext"
+    static let contextType: String = "PolymorphicWriteEntryContext"
 }
 
 public enum PolymorphicTransactionConstraintEntryMacro: ExtensionMacro {
diff --git a/Sources/DynamoDBTablesMacros/PolymorphicWriteEntryMacro.swift b/Sources/DynamoDBTablesMacros/PolymorphicWriteEntryMacro.swift
index 1c3ec8b..f14fe13 100644
--- a/Sources/DynamoDBTablesMacros/PolymorphicWriteEntryMacro.swift
+++ b/Sources/DynamoDBTablesMacros/PolymorphicWriteEntryMacro.swift
@@ -19,13 +19,13 @@ import SwiftSyntax
 import SwiftSyntaxMacros
 
 struct PolymorphicWriteEntryMacroAttributes: MacroAttributes {
-    static var macroName: String = "PolymorphicWriteEntry"
+    static let macroName: String = "PolymorphicWriteEntry"
 
-    static var protocolName: String = "PolymorphicWriteEntry"
+    static let protocolName: String = "PolymorphicWriteEntry"
 
-    static var transformType: String = "WriteEntryTransformType"
+    static let transformType: String = "WriteEntryTransformType"
 
-    static var contextType: String = "PolymorphicWriteEntryContext"
+    static let contextType: String = "PolymorphicWriteEntryContext"
 }
 
 public enum PolymorphicWriteEntryMacro: ExtensionMacro {
diff --git a/Tests/DynamoDBTablesTests/InMemoryDynamoDBCompositePrimaryKeyTableTests.swift b/Tests/DynamoDBTablesTests/InMemoryDynamoDBCompositePrimaryKeyTableTests.swift
index e84c169..6722996 100644
--- a/Tests/DynamoDBTablesTests/InMemoryDynamoDBCompositePrimaryKeyTableTests.swift
+++ b/Tests/DynamoDBTablesTests/InMemoryDynamoDBCompositePrimaryKeyTableTests.swift
@@ -380,13 +380,21 @@ struct InMemoryDynamoDBCompositePrimaryKeyTableTests {
         #expect(retrievedItem1 != nil)
 
         try await table.deleteItem(existingItem: databaseItem)
+
+        // suspend for a small interval so that the creation time of the recreated item is different
+        try await Task.sleep(for: .milliseconds(10))
+
         let recreatedItem = StandardTypedDatabaseItem.newItem(withKey: key, andValue: payload)
         _ = try await table.insertItem(recreatedItem)
 
         do {
             try await table.deleteItem(existingItem: databaseItem)
+
+            Issue.record("Expected error was not thrown")
         } catch DynamoDBTableError.conditionalCheckFailed {
             // expected error
+        } catch {
+            Issue.record("Expected error was not thrown")
         }
 
         let retrievedItem2: StandardTypedDatabaseItem<TestTypeA>? = try await table.getItem(forKey: key)