diff --git a/app/serializers/ckb_transaction_serializer.rb b/app/serializers/ckb_transaction_serializer.rb
index b1c700eee..9218fac40 100644
--- a/app/serializers/ckb_transaction_serializer.rb
+++ b/app/serializers/ckb_transaction_serializer.rb
@@ -45,7 +45,7 @@ class CkbTransactionSerializer
   end
 
   attribute :display_inputs do |object, params|
-    cache_key = "display_inputs_previews_#{params[:previews].present?}_#{object.id}_#{object.inputs.cache_key}"
+    cache_key = "display_inputs_previews_#{params[:previews].present?}_#{object.id}_#{object.inputs.cache_version}"
     Rails.cache.fetch(cache_key, expires_in: 1.day) do
       if params && params[:previews]
         object.display_inputs(previews: true)
@@ -56,7 +56,7 @@ class CkbTransactionSerializer
   end
 
   attribute :display_outputs do |object, params|
-    cache_key = "display_outputs_previews_#{params[:previews].present?}_#{object.id}_#{object.outputs.cache_key}"
+    cache_key = "display_outputs_previews_#{params[:previews].present?}_#{object.id}_#{object.outputs.cache_version}"
     Rails.cache.fetch(cache_key, expires_in: 1.day) do
       if params && params[:previews]
         object.display_outputs(previews: true)
diff --git a/app/serializers/ckb_transactions_serializer.rb b/app/serializers/ckb_transactions_serializer.rb
index aba90613f..f36570812 100644
--- a/app/serializers/ckb_transactions_serializer.rb
+++ b/app/serializers/ckb_transactions_serializer.rb
@@ -24,7 +24,7 @@ class CkbTransactionsSerializer
   end
 
   attribute :display_inputs do |object, params|
-    cache_key = "display_inputs_previews_#{params[:previews].present?}_#{object.id}_#{object.inputs.cache_key}"
+    cache_key = "display_inputs_previews_#{params[:previews].present?}_#{object.id}_#{object.inputs.cache_version}"
     Rails.cache.fetch(cache_key, expires_in: 1.day) do
       if params && params[:previews]
         object.display_inputs(previews: true)
@@ -35,7 +35,7 @@ class CkbTransactionsSerializer
   end
 
   attribute :display_outputs do |object, params|
-    cache_key = "display_outputs_previews_#{params[:previews].present?}_#{object.id}_#{object.outputs.cache_key}"
+    cache_key = "display_outputs_previews_#{params[:previews].present?}_#{object.id}_#{object.outputs.cache_version}"
     Rails.cache.fetch(cache_key, expires_in: 1.day) do
       if params && params[:previews]
         object.display_outputs(previews: true)