diff --git a/Sources/Tools/DictionaryDecoder/Options/DictionaryDataDecodingStrategy.swift b/Sources/Tools/DictionaryDecoder/Options/DictionaryDataDecodingStrategy.swift
index 3f3de189..39d271a5 100644
--- a/Sources/Tools/DictionaryDecoder/Options/DictionaryDataDecodingStrategy.swift
+++ b/Sources/Tools/DictionaryDecoder/Options/DictionaryDataDecodingStrategy.swift
@@ -10,5 +10,5 @@ public enum DictionaryDataDecodingStrategy {
     case base64
 
     /// The strategy that decodes data using a user-defined function.
-    case custom((_ decoder: Decoder) throws -> Data)
+    case custom(@Sendable (_ decoder: Decoder) throws -> Data)
 }
diff --git a/Sources/Tools/DictionaryDecoder/Options/DictionaryDateDecodingStrategy.swift b/Sources/Tools/DictionaryDecoder/Options/DictionaryDateDecodingStrategy.swift
index 0809e32d..a3dca17b 100644
--- a/Sources/Tools/DictionaryDecoder/Options/DictionaryDateDecodingStrategy.swift
+++ b/Sources/Tools/DictionaryDecoder/Options/DictionaryDateDecodingStrategy.swift
@@ -20,5 +20,5 @@ public enum DictionaryDateDecodingStrategy {
     case formatted(DateFormatter)
 
     /// The strategy that formats custom dates by calling a user-defined function.
-    case custom((_ decoder: Decoder) throws -> Date)
+    case custom(@Sendable (_ decoder: Decoder) throws -> Date)
 }
diff --git a/Sources/Tools/DictionaryDecoder/Options/DictionaryKeyDecodingStrategy.swift b/Sources/Tools/DictionaryDecoder/Options/DictionaryKeyDecodingStrategy.swift
index 0f5c9670..7c5334e8 100644
--- a/Sources/Tools/DictionaryDecoder/Options/DictionaryKeyDecodingStrategy.swift
+++ b/Sources/Tools/DictionaryDecoder/Options/DictionaryKeyDecodingStrategy.swift
@@ -7,5 +7,5 @@ public enum DictionaryKeyDecodingStrategy {
     case useDefaultKeys
 
     /// A key decoding strategy defined by the closure you supply.
-    case custom((_ codingPath: [CodingKey]) -> CodingKey)
+    case custom(@Sendable (_ codingPath: [CodingKey]) -> CodingKey)
 }
diff --git a/Tests/Tools/DictionaryDecoder/DictionaryDecoderTesting.swift b/Tests/Tools/DictionaryDecoder/DictionaryDecoderTesting.swift
index 6feae332..2ad7905c 100644
--- a/Tests/Tools/DictionaryDecoder/DictionaryDecoderTesting.swift
+++ b/Tests/Tools/DictionaryDecoder/DictionaryDecoderTesting.swift
@@ -28,7 +28,7 @@ extension DictionaryDecoderTesting {
     func assertDecoderSucceeds<Key: Decodable & Hashable, Value: Decodable & FloatingPoint & Equatable>(
         decoding expectedValue: [Key: Value],
         from dictionary: [String: Any],
-        file: StaticString = #file,
+        file: StaticString = #filePath,
         line: UInt = #line
     ) {
         do {
@@ -48,7 +48,7 @@ extension DictionaryDecoderTesting {
     func assertDecoderSucceeds<Key: Decodable & Hashable, Value: Decodable & FloatingPoint & Equatable>(
         decoding valueType: [Key: Value].Type,
         from dictionary: [String: Any],
-        file: StaticString = #file,
+        file: StaticString = #filePath,
         line: UInt = #line
     ) {
         do {
@@ -68,7 +68,7 @@ extension DictionaryDecoderTesting {
     func assertDecoderSucceeds<T: Decodable & Equatable>(
         decoding expectedValue: T,
         from dictionary: [String: Any],
-        file: StaticString = #file,
+        file: StaticString = #filePath,
         line: UInt = #line
     ) {
         do {
@@ -83,7 +83,7 @@ extension DictionaryDecoderTesting {
     func assertDecoderSucceeds<T: Decodable & Equatable>(
         decoding valueType: T.Type,
         from dictionary: [String: Any],
-        file: StaticString = #file,
+        file: StaticString = #filePath,
         line: UInt = #line
     ) {
         do {
@@ -103,7 +103,7 @@ extension DictionaryDecoderTesting {
     func assertDecoderFails<T: Decodable>(
         decoding valueType: T.Type,
         from dictionary: [String: Any],
-        file: StaticString = #file,
+        file: StaticString = #filePath,
         line: UInt = #line,
         errorValidation: (_ error: Error) -> Bool
     ) {
diff --git a/Tests/Tools/URLQueryDecoder/URLQueryDecoderTesting.swift b/Tests/Tools/URLQueryDecoder/URLQueryDecoderTesting.swift
index b1cff05f..008718be 100644
--- a/Tests/Tools/URLQueryDecoder/URLQueryDecoderTesting.swift
+++ b/Tests/Tools/URLQueryDecoder/URLQueryDecoderTesting.swift
@@ -13,7 +13,7 @@ extension URLQueryDecoderTesting {
         decoding valueType: [Key: Value].Type,
         from query: String,
         expecting expectedValue: [Key: Value],
-        file: StaticString = #file,
+        file: StaticString = #filePath,
         line: UInt = #line
     ) {
         do {
@@ -34,7 +34,7 @@ extension URLQueryDecoderTesting {
         decoding valueType: T.Type,
         from query: String,
         expecting expectedValue: T,
-        file: StaticString = #file,
+        file: StaticString = #filePath,
         line: UInt = #line
     ) {
         do {
@@ -49,7 +49,7 @@ extension URLQueryDecoderTesting {
     func assertDecoderFails<T: Decodable>(
         decoding valueType: T.Type,
         from query: String,
-        file: StaticString = #file,
+        file: StaticString = #filePath,
         line: UInt = #line,
         errorValidation: (_ error: Error) -> Bool
     ) {