diff --git a/core-base/network/src/commonMain/kotlin/template/core/base/network/KtorHttpClient.kt b/core-base/network/src/commonMain/kotlin/template/core/base/network/KtorHttpClient.kt
index e9d9584f..3a776b9a 100644
--- a/core-base/network/src/commonMain/kotlin/template/core/base/network/KtorHttpClient.kt
+++ b/core-base/network/src/commonMain/kotlin/template/core/base/network/KtorHttpClient.kt
@@ -159,4 +159,8 @@ fun setupDefaultHttpClient(
     install(ContentNegotiation) {
         json(jsonConfig)
     }
+
+    // Enable response validation to throw exceptions for non-2xx responses
+    // This allows proper error handling with ClientRequestException (4xx) and ServerResponseException (5xx)
+    expectSuccess = true
 }