diff --git a/MEV_by_chains/MEV_on_Arbitrum/README.md b/MEV_by_chains/MEV_on_Arbitrum/README.md
index dbd52e5..0894022 100644
--- a/MEV_by_chains/MEV_on_Arbitrum/README.md
+++ b/MEV_by_chains/MEV_on_Arbitrum/README.md
@@ -30,3 +30,4 @@
 
 * [transaction ordering policy](https://research.arbitrum.io/t/transaction-ordering-policy/127)
 * [arbitrum bridge tutorial](https://arbitrum.io/bridge-tutorial/)
+* [arbitrum gas fee, by dune](https://dune.com/blog/fueling-gas-spells-arbitrum)