diff --git a/Sources/ClassifierCreator.swift b/Sources/ClassifierCreator.swift
index 0060e76..a40fcc8 100644
--- a/Sources/ClassifierCreator.swift
+++ b/Sources/ClassifierCreator.swift
@@ -23,6 +23,8 @@ final class ClassifierCreator {
     
     let classifierUrl: URL
     
+    let urlSession = URLSession(configuration: .ephemeral)
+    
     let df = DateFormatter()
     
     private func print(info: String) {
@@ -201,7 +203,7 @@ final class ClassifierCreator {
         let url = imageUrl(base: server.appendingPathComponent("images"), image: image)
         let tempFile: URL, response: URLResponse
         do {
-            (tempFile, response) = try await URLSession.shared.download(from: url)
+            (tempFile, response) = try await urlSession.download(from: url)
         } catch {
             throw TrainingError.failedToLoadImage(image, error)
         }
@@ -523,7 +525,7 @@ final class ClassifierCreator {
     }
     
     private func perform(_ request: URLRequest) async throws -> Data {
-        let (data, response) = try await URLSession.shared.data(for: request)
+        let (data, response) = try await urlSession.data(for: request)
         let code = (response as! HTTPURLResponse).statusCode
         guard code == 200 else {
             throw TrainingError.invalidResponse(request.url!, code)