diff --git a/src/all/mangadex/build.gradle b/src/all/mangadex/build.gradle
index 1380a6986..8292bfa03 100644
--- a/src/all/mangadex/build.gradle
+++ b/src/all/mangadex/build.gradle
@@ -1,7 +1,7 @@
 ext {
     extName = 'MangaDex'
     extClass = '.MangaDexFactory'
-    extVersionCode = 202
+    extVersionCode = 203
     isNsfw = true
 }
 
diff --git a/src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/dto/ChapterDto.kt b/src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/dto/ChapterDto.kt
index 6383c5110..431d46814 100644
--- a/src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/dto/ChapterDto.kt
+++ b/src/all/mangadex/src/eu/kanade/tachiyomi/extension/all/mangadex/dto/ChapterDto.kt
@@ -20,7 +20,7 @@ data class ChapterAttributesDto(
     val pages: Int,
     val publishAt: String,
     val externalUrl: String?,
-    val isUnavailable: Boolean?,
+    val isUnavailable: Boolean = false,
 ) : AttributesDto() {
 
     /**