diff --git a/bin/rundler/chain_specs/avax.toml b/bin/rundler/chain_specs/avax.toml
index 4d346470..f8b1001a 100644
--- a/bin/rundler/chain_specs/avax.toml
+++ b/bin/rundler/chain_specs/avax.toml
@@ -1,3 +1,7 @@
-name = "BeraChain Bartio"
-id = 80084
+name = "Avax"
+id = 43114
 
+# Intrinsic cost + overhead of non-reentry storage without refund
+transaction_intrinsic_gas = "0x5DC0" # 24_000
+# Extra cost of a deploy without refunds
+per_user_op_deploy_overhead_gas = "0x4E20" # 20_000