diff --git a/.gitignore b/.gitignore
index d666e5b..ed43feb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,7 +23,6 @@ gradle-app.setting
 
 ### VisualStudioCode.gitignore
 .vscode/*
-!.vscode/settings.json
 !.vscode/tasks.json
 !.vscode/launch.json
 !.vscode/extensions.json
diff --git a/module/build.gradle.kts b/module/build.gradle.kts
index d10184b..d927684 100644
--- a/module/build.gradle.kts
+++ b/module/build.gradle.kts
@@ -12,8 +12,9 @@ val abiList: List<String> by rootProject.extra
 
 android {
     namespace = "com.example.library"
-    compileSdk = 34
+    compileSdkVersion = "android-31"
     defaultConfig {
+        minSdk = 21
         ndk {
             abiFilters.addAll(abiList)
         }
diff --git a/module/jni/Application.mk b/module/jni/Application.mk
index fc0f7c8..1db1d73 100644
--- a/module/jni/Application.mk
+++ b/module/jni/Application.mk
@@ -1,4 +1,4 @@
 APP_ABI      := armeabi-v7a arm64-v8a x86 x86_64
-APP_CPPFLAGS := -std=c++17 -fno-exceptions -fno-rtti -fvisibility=hidden -fvisibility-inlines-hidden
+APP_CPPFLAGS := -std=c++20 -fno-exceptions -fno-rtti -fvisibility=hidden -fvisibility-inlines-hidden
 APP_STL      := none
-APP_PLATFORM := android-29
+APP_PLATFORM := android-31