diff --git a/libs/cardano-ledger-core/src/Cardano/Ledger/CertState.hs b/libs/cardano-ledger-core/src/Cardano/Ledger/CertState.hs
index c445d4223bc..e0dcca64b93 100644
--- a/libs/cardano-ledger-core/src/Cardano/Ledger/CertState.hs
+++ b/libs/cardano-ledger-core/src/Cardano/Ledger/CertState.hs
@@ -312,16 +312,18 @@ instance Crypto c => DecShareCBOR (InstantaneousRewards c) where
       pure $ InstantaneousRewards irR irT dR dT
 
 instance Era era => EncCBOR (CertState era) where
-  encCBOR CertState {certPState, certDState, certVState} =
-    encodeListLen 3
-      <> encCBOR certVState
+  encCBOR CertState {certPState, certDState} =
+    encodeListLen 2
+      -- <> encCBOR certVState
       <> encCBOR certPState
       <> encCBOR certDState
 
 instance Era era => DecShareCBOR (CertState era) where
   type Share (CertState era) = (Interns (Credential 'Staking (EraCrypto era)), Interns (KeyHash 'StakePool (EraCrypto era)))
-  decSharePlusCBOR = decodeRecordNamedT "CertState" (const 3) $ do
-    certVState <- lift decCBOR -- TODO: add sharing of DRep credentials
+  decSharePlusCBOR = decodeRecordNamedT "CertState" (const 2) $ do
+    -- TODO: add deserialization with sharing of DRep credentials
+    -- certVState <- lift decCBOR
+    let certVState = def
     certPState <- decSharePlusLensCBOR _2
     certDState <- decSharePlusCBOR
     pure CertState {certPState, certDState, certVState}