diff --git a/HackerTube.xcodeproj/project.pbxproj b/HackerTube.xcodeproj/project.pbxproj
index 9d2934c..6df56bc 100644
--- a/HackerTube.xcodeproj/project.pbxproj
+++ b/HackerTube.xcodeproj/project.pbxproj
@@ -345,6 +345,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 			};
 			name = Debug;
@@ -366,6 +367,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_EMIT_LOC_STRINGS = YES;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 			};
 			name = Release;
@@ -471,7 +473,7 @@
 				SWIFT_APPROACHABLE_CONCURRENCY = YES;
 				SWIFT_DEFAULT_ACTOR_ISOLATION = MainActor;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 				TVOS_DEPLOYMENT_TARGET = 18.6;
 				XROS_DEPLOYMENT_TARGET = 26.0;
 			};
@@ -539,7 +541,7 @@
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_DEFAULT_ACTOR_ISOLATION = MainActor;
 				SWIFT_OPTIMIZATION_LEVEL = "-O";
-				SWIFT_VERSION = 5.0;
+				SWIFT_VERSION = 6.0;
 				TVOS_DEPLOYMENT_TARGET = 18.6;
 				VALIDATE_PRODUCT = YES;
 				XROS_DEPLOYMENT_TARGET = 26.0;
diff --git a/MediaCCCApi/Sources/MediaCCCApi/MediaCCCApiClient.swift b/MediaCCCApi/Sources/MediaCCCApi/MediaCCCApiClient.swift
index 335c3d7..00f8159 100644
--- a/MediaCCCApi/Sources/MediaCCCApi/MediaCCCApiClient.swift
+++ b/MediaCCCApi/Sources/MediaCCCApi/MediaCCCApiClient.swift
@@ -8,7 +8,7 @@
 import Foundation
 import os.log
 
-public final class MediaCCCApiClient {
+public final class MediaCCCApiClient: Sendable {
     private let session: URLSession
     private let baseURL = URL(string: "https://api.media.ccc.de/public")!
     private let decoder = JSONDecoder()