diff --git a/src/cl/teku/teku_launcher.star b/src/cl/teku/teku_launcher.star
index fd6809cf..516f51bd 100644
--- a/src/cl/teku/teku_launcher.star
+++ b/src/cl/teku/teku_launcher.star
@@ -151,7 +151,6 @@ def get_config(
 		DEST_VALIDATOR_SECRETS_DIRPATH_IN_SERVICE_CONTAINER,
 		"&&",
 		TEKU_BINARY_FILEPATH_IN_IMAGE,
-		"--Xee-version kilnv2",
 		"--logging=" + log_level,
 		"--log-destination=CONSOLE",
 		"--network=" + genesis_config_filepath,
@@ -162,7 +161,6 @@ def get_config(
 		# Set per Pari's recommendation, to reduce noise in the logs
 		"--p2p-subscribe-all-subnets-enabled=true",
 		"--p2p-peer-lower-bound={0}".format(MIN_PEERS),
-		"--eth1-endpoints=" + el_client_rpc_url_str,
 		"--p2p-advertised-ip=" + PRIVATE_IP_ADDRESS_PLACEHOLDER,
 		"--rest-api-enabled=true",
 		"--rest-api-docs-enabled=true",
diff --git a/src/el/nethermind/nethermind_launcher.star b/src/el/nethermind/nethermind_launcher.star
index 80ff1481..0f7d23c2 100644
--- a/src/el/nethermind/nethermind_launcher.star
+++ b/src/el/nethermind/nethermind_launcher.star
@@ -93,16 +93,12 @@ def get_config(genesis_data, image, existing_el_clients, log_level, extra_params
 		"--JsonRpc.Enabled=true",
 		"--JsonRpc.EnabledModules=net,eth,consensus,subscribe,web3,admin",
 		"--JsonRpc.Host=0.0.0.0",
-		# TODO(old) Set Eth isMining?
 		"--JsonRpc.Port={0}".format(RPC_PORT_NUM),
 		"--JsonRpc.WebSocketsPort={0}".format(WS_PORT_NUM),
 		"--Network.ExternalIp={0}".format(PRIVATE_IP_ADDRESS_PLACEHOLDER),
 		"--Network.LocalIp={0}".format(PRIVATE_IP_ADDRESS_PLACEHOLDER),
 		"--Network.DiscoveryPort={0}".format(DISCOVERY_PORT_NUM),
 		"--Network.P2PPort={0}".format(DISCOVERY_PORT_NUM),
-		"--Merge.Enabled=true",
-		"--Merge.TerminalTotalDifficulty=0", # merge has happened already
-		"--Merge.TerminalBlockNumber=null",
 		"--JsonRpc.JwtSecretFile={0}".format(jwt_secret_json_filepath_on_client),
 		"--JsonRpc.AdditionalRpcUrls=[\"http://0.0.0.0:{0}|http;ws|net;eth;subscribe;engine;web3;client\"]".format(ENGINE_RPC_PORT_NUM),
 		"--Network.OnlyStaticPeers=true",