diff --git a/app/src/main/java/io/legado/app/ui/association/VerificationCodeDialog.kt b/app/src/main/java/io/legado/app/ui/association/VerificationCodeDialog.kt
index db7e4d65a..11c53e6c1 100644
--- a/app/src/main/java/io/legado/app/ui/association/VerificationCodeDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/association/VerificationCodeDialog.kt
@@ -103,7 +103,8 @@ class VerificationCodeDialog() : BaseDialogFragment(R.layout.dialog_verification
                     transition: Transition<in Bitmap>?
                 ) {
                     view ?: return
-                    ImageProvider.bitmapLruCache.put(url, resource)
+                    val bitmap = resource.copy(resource.config, true)
+                    ImageProvider.bitmapLruCache.put(url, bitmap)
                     binding.verificationCodeImageView.setImageBitmap(resource)
                 }