diff --git a/Sources/OpenAPIAsyncHTTPClient/AsyncHTTPClientTransport.swift b/Sources/OpenAPIAsyncHTTPClient/AsyncHTTPClientTransport.swift
index 35cb654..f09fdbb 100644
--- a/Sources/OpenAPIAsyncHTTPClient/AsyncHTTPClientTransport.swift
+++ b/Sources/OpenAPIAsyncHTTPClient/AsyncHTTPClientTransport.swift
@@ -15,8 +15,15 @@ import OpenAPIRuntime
 import AsyncHTTPClient
 import NIOCore
 import NIOHTTP1
-import Foundation
 import NIOFoundationCompat
+#if canImport(Darwin)
+import Foundation
+#else
+@preconcurrency import struct Foundation.URL
+import struct Foundation.URLComponents
+import struct Foundation.Data
+import protocol Foundation.LocalizedError
+#endif
 
 /// A client transport that performs HTTP operations using the HTTPClient type
 /// provided by the AsyncHTTPClient library.
diff --git a/docker/docker-compose.2204.58.yaml b/docker/docker-compose.2204.58.yaml
index eb4be59..eca0761 100644
--- a/docker/docker-compose.2204.58.yaml
+++ b/docker/docker-compose.2204.58.yaml
@@ -13,6 +13,7 @@ services:
     environment:
       - WARN_AS_ERROR_ARG=-Xswiftc -warnings-as-errors
       - IMPORT_CHECK_ARG=--explicit-target-dependency-import-check error
+      - STRICT_CONCURRENCY_ARG=-Xswiftc -strict-concurrency=complete
 
   shell:
     image: *image
diff --git a/docker/docker-compose.2204.59.yaml b/docker/docker-compose.2204.59.yaml
index a475877..1ac8741 100644
--- a/docker/docker-compose.2204.59.yaml
+++ b/docker/docker-compose.2204.59.yaml
@@ -12,6 +12,7 @@ services:
     environment:
       - WARN_AS_ERROR_ARG=-Xswiftc -warnings-as-errors
       - IMPORT_CHECK_ARG=--explicit-target-dependency-import-check error
+      - STRICT_CONCURRENCY_ARG=-Xswiftc -strict-concurrency=complete
 
   shell:
     image: *image
diff --git a/docker/docker-compose.2204.main.yaml b/docker/docker-compose.2204.main.yaml
index 31dbe00..b1443e6 100644
--- a/docker/docker-compose.2204.main.yaml
+++ b/docker/docker-compose.2204.main.yaml
@@ -12,6 +12,7 @@ services:
     environment:
       - WARN_AS_ERROR_ARG=-Xswiftc -warnings-as-errors
       - IMPORT_CHECK_ARG=--explicit-target-dependency-import-check error
+      - STRICT_CONCURRENCY_ARG=-Xswiftc -strict-concurrency=complete
 
   shell:
     image: *image
diff --git a/docker/docker-compose.yaml b/docker/docker-compose.yaml
index 994d8b4..055978f 100644
--- a/docker/docker-compose.yaml
+++ b/docker/docker-compose.yaml
@@ -30,7 +30,7 @@ services:
 
   test:
     <<: *common
-    command: /bin/bash -xcl "swift $${SWIFT_TEST_VERB-test} $${WARN_AS_ERROR_ARG-} $${SANITIZER_ARG-} $${IMPORT_CHECK_ARG-}"
+    command: /bin/bash -xcl "swift $${SWIFT_TEST_VERB-test} $${WARN_AS_ERROR_ARG-} $${SANITIZER_ARG-} $${IMPORT_CHECK_ARG-} $${STRICT_CONCURRENCY_ARG-}"
 
   shell:
     <<: *common