diff --git a/tanker-bindings/build.gradle b/tanker-bindings/build.gradle
index 10bee61..868189f 100644
--- a/tanker-bindings/build.gradle
+++ b/tanker-bindings/build.gradle
@@ -12,7 +12,7 @@ version 'dev'
 android {
     compileSdkVersion 28
     defaultConfig {
-        minSdkVersion 21
+        minSdkVersion 19
         targetSdkVersion 28
 
         ndk {