diff --git a/app/build.gradle b/app/build.gradle
index f738cad..5f71d96 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -48,11 +48,11 @@ dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     testImplementation 'junit:junit:4.13'
 
-    implementation 'androidx.appcompat:appcompat:1.1.0'
-    implementation 'androidx.recyclerview:recyclerview:1.1.0'
-    implementation 'com.google.android.material:material:1.1.0'
+    implementation 'androidx.appcompat:appcompat:1.0.0'
+    implementation 'androidx.recyclerview:recyclerview:1.0.0'
+    implementation 'com.google.android.material:material:1.0.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
 
     implementation 'com.journeyapps:zxing-android-embedded:4.1.0'
-    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.appcompat:appcompat:1.0.0'
 }