diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
index ab0159e..1ae240d 100644
Binary files a/.idea/caches/build_file_checksums.ser and b/.idea/caches/build_file_checksums.ser differ
diff --git a/app/build.gradle b/app/build.gradle
index 7ecdca4..f68cee7 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -5,8 +5,8 @@ android {
     defaultConfig {
         minSdkVersion 14
         targetSdkVersion 28
-        versionCode 210
-        versionName "2.1.0"
+        versionCode 212
+        versionName "2.1.2"
     }
     buildTypes {
         release {
@@ -26,5 +26,4 @@ dependencies {
 
 //    implementation 'com.github.maning0303:MNZXingCode:V2.1.1'
     implementation project(':libraryzxing')
-    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
 }