diff --git a/buildSrc/src/main/kotlin/Versions.kt b/buildSrc/src/main/kotlin/Versions.kt
index 59a2f5605..3016aed46 100644
--- a/buildSrc/src/main/kotlin/Versions.kt
+++ b/buildSrc/src/main/kotlin/Versions.kt
@@ -91,7 +91,7 @@ object Versions {
 
   const val core_ktx: String = "1.2.0"
 
-  const val kiwixlib: String = "9.0.1-1"
+  const val kiwixlib: String = "9.1.0"
 
   const val material: String = "1.1.0-beta02" // available: "1.1.0"
 
diff --git a/core/src/main/java/org/kiwix/kiwixmobile/core/reader/ZimFileReader.kt b/core/src/main/java/org/kiwix/kiwixmobile/core/reader/ZimFileReader.kt
index c1ea4115e..eb0b99833 100644
--- a/core/src/main/java/org/kiwix/kiwixmobile/core/reader/ZimFileReader.kt
+++ b/core/src/main/java/org/kiwix/kiwixmobile/core/reader/ZimFileReader.kt
@@ -155,15 +155,10 @@ class ZimFileReader constructor(
     return AssetFileDescriptor(
       infoPair.parcelFileDescriptor,
       infoPair.offset,
-      articleSize(uri)
+      jniKiwixReader.getArticleSize(uri)
     ).createInputStream()
   }
 
-  private fun articleSize(uri: String) = with(JNIKiwixInt()) {
-    jniKiwixReader.getContentPart(uri.filePath, 0, 0, this)
-    value.toLong()
-  }
-
   @Throws(IOException::class)
   private fun loadVideoFromCache(uri: String): FileInputStream {
     return File(