diff --git a/build.gradle b/build.gradle
index 33a3cdfe38cecee00ae2217fe3fb9474193b47d4..e9e383f9572be3d2fa403cff71790f7e6cfc07f8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -33,8 +33,8 @@ android {
     compileSdkVersion 28
     buildToolsVersion '28.0.3'
     defaultConfig {
-        minSdkVersion 14
-        targetSdkVersion 19
+        minSdkVersion 21
+        targetSdkVersion 26
         useLibrary 'org.apache.http.legacy'
         versionCode 1
         versionName '1.0'