diff --git a/.github/assets/kurtosis_op_network_params.yaml b/.github/assets/kurtosis_op_network_params.yaml
index 0e1516cc8890..13b5b0bcd91d 100644
--- a/.github/assets/kurtosis_op_network_params.yaml
+++ b/.github/assets/kurtosis_op_network_params.yaml
@@ -1,6 +1,8 @@
 ethereum_package:
   participants:
     - el_type: reth
+      el_extra_params:
+        - "--rpc.eth-proof-window 100"
       cl_type: lighthouse
 optimism_package:
   chains: