diff --git a/nethermind-mainnet.yml b/nethermind-mainnet.yml
index 0601cc14..1896ac43 100644
--- a/nethermind-mainnet.yml
+++ b/nethermind-mainnet.yml
@@ -41,12 +41,12 @@ services:
       - NETHERMIND_RECEIPTCONFIG_STORERECEIPTS=false
       - NETHERMIND_RECEIPTCONFIG_TXLOOKUPLIMIT=128
       #- NETHERMIND_RECEIPTCONFIG_RECEIPTSMIGRATION=true
-      #- NETHERMIND_SYNCCONFIG_FASTSYNC=true
+      - NETHERMIND_SYNCCONFIG_FASTSYNC=true
       - NETHERMIND_SYNCCONFIG_SNAPSYNC=true
       #- NETHERMIND_SYNCCONFIG_FASTBLOCKS=true
       - NETHERMIND_SYNCCONFIG_NONVALIDATORNODE=true
-      #- NETHERMIND_SYNCCONFIG_DOWNLOADBODIESINFASTSYNC=false
-      #- NETHERMIND_SYNCCONFIG_DOWNLOADHEADERSINFASTSYNC=false
+      - NETHERMIND_SYNCCONFIG_DOWNLOADBODIESINFASTSYNC=false
+      - NETHERMIND_SYNCCONFIG_DOWNLOADHEADERSINFASTSYNC=false
       #- NETHERMIND_SYNCCONFIG_DOWNLOADRECEIPTSINFASTSYNC=false
       #- NETHERMIND_SYNCCONFIG_ANCIENTBODIESBARRIER=1
       #- NETHERMIND_SYNCCONFIG_ANCIENTRECEIPTSBARRIER=1