diff --git a/app/build.gradle b/app/build.gradle
index 3678e7ab2..588a3158e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -43,7 +43,7 @@ ext {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:3.0.22'
+    implementation 'com.simplemobiletools:commons:3.0.23'
     implementation 'com.davemorrissey.labs:subsampling-scale-image-view:3.8.0'
     implementation 'com.theartofdev.edmodo:android-image-cropper:2.4.0'
     implementation 'com.android.support:multidex:1.0.2'
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/activity.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/Activity.kt
similarity index 100%
rename from app/src/main/kotlin/com/simplemobiletools/gallery/extensions/activity.kt
rename to app/src/main/kotlin/com/simplemobiletools/gallery/extensions/Activity.kt
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/arrayList.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/ArrayList.kt
similarity index 100%
rename from app/src/main/kotlin/com/simplemobiletools/gallery/extensions/arrayList.kt
rename to app/src/main/kotlin/com/simplemobiletools/gallery/extensions/ArrayList.kt
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/context.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/Context.kt
similarity index 100%
rename from app/src/main/kotlin/com/simplemobiletools/gallery/extensions/context.kt
rename to app/src/main/kotlin/com/simplemobiletools/gallery/extensions/Context.kt
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/file.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/File.kt
similarity index 100%
rename from app/src/main/kotlin/com/simplemobiletools/gallery/extensions/file.kt
rename to app/src/main/kotlin/com/simplemobiletools/gallery/extensions/File.kt
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/resources.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/Resources.kt
similarity index 100%
rename from app/src/main/kotlin/com/simplemobiletools/gallery/extensions/resources.kt
rename to app/src/main/kotlin/com/simplemobiletools/gallery/extensions/Resources.kt
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/string.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/extensions/String.kt
similarity index 100%
rename from app/src/main/kotlin/com/simplemobiletools/gallery/extensions/string.kt
rename to app/src/main/kotlin/com/simplemobiletools/gallery/extensions/String.kt