diff --git a/cardano_node_tests/cluster_scripts/conway_fast/template-config.json b/cardano_node_tests/cluster_scripts/conway_fast/template-config.json
index a25b001c2..9fb46ed9c 100644
--- a/cardano_node_tests/cluster_scripts/conway_fast/template-config.json
+++ b/cardano_node_tests/cluster_scripts/conway_fast/template-config.json
@@ -3,7 +3,7 @@
     "ApplicationVersion": 1,
     "ByronGenesisFile": "byron/genesis.json",
     "LastKnownBlockVersion-Alt": 0,
-    "LastKnownBlockVersion-Major": 6,
+    "LastKnownBlockVersion-Major": 9,
     "LastKnownBlockVersion-Minor": 0,
     "PBftSignatureThreshold": 1,
     "Protocol": "Cardano",
@@ -183,5 +183,6 @@
     "TestAlonzoHardForkAtEpoch": 0,
     "TestBabbageHardForkAtEpoch": 0,
     "TestConwayHardForkAtEpoch": 0,
+    "ExperimentalHardForksEnabled": true,
     "ExperimentalProtocolsEnabled": true
 }