diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 7f42006..424f66c 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -132,7 +132,7 @@ dependencies {
     implementation(project(":openvpn-core"))
     // ---- Embedded WireGuard engine (official tunnel library, Apache-2.0) ---
     implementation("com.wireguard.android:tunnel:1.0.20230706")
-    coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:2.0.3")
+    coreLibraryDesugaring("com.android.tools:desugar_jdk_libs:2.1.5")
     // ---- Runtime: first-party Android only --------------------------------
     implementation(libs.androidx.core.ktx)
     implementation(libs.androidx.appcompat)