diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
index 729d7d3..d190366 100644
Binary files a/.idea/caches/build_file_checksums.ser and b/.idea/caches/build_file_checksums.ser differ
diff --git a/fragment/build.gradle b/fragment/build.gradle
index 11e952b..936c196 100644
--- a/fragment/build.gradle
+++ b/fragment/build.gradle
@@ -23,7 +23,7 @@ android {
     compileSdkVersion 25
 
     defaultConfig {
-        minSdkVersion 19
+        minSdkVersion 17
         targetSdkVersion 25
         versionCode 1
         versionName "1.0"