diff --git a/app/build.gradle b/app/build.gradle
index d3e50bd..774107b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -116,7 +116,9 @@ dependencies {
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'com.journeyapps:zxing-android-embedded:4.3.0'
     implementation 'androidx.core:core:1.13.1'
-    implementation 'de.raphaelebner:roomdatabasebackup:1.0.1'
+    implementation 'de.raphaelebner:roomdatabasebackup:1.0.1' // a supprimer
+
+    implementation 'androidx.documentfile:documentfile:1.0.1'
 
     //coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.0'
 }