diff --git a/cardano-api/src/Cardano/Api/ProtocolParameters.hs b/cardano-api/src/Cardano/Api/ProtocolParameters.hs
index 649adf0b04..e0bb296d13 100644
--- a/cardano-api/src/Cardano/Api/ProtocolParameters.hs
+++ b/cardano-api/src/Cardano/Api/ProtocolParameters.hs
@@ -116,6 +116,7 @@ import Cardano.Ledger.Conway.PParams qualified as Ledger
 import Cardano.Ledger.Dijkstra.PParams qualified as Ledger
 import Cardano.Ledger.Hashes (HASH)
 import Cardano.Ledger.Plutus.CostModels qualified as Plutus
+import Cardano.Ledger.Plutus.ExUnits qualified as Plutus
 import Cardano.Ledger.Plutus.Language qualified as Plutus
 import Cardano.Ledger.Shelley.API qualified as Ledger
 import Cardano.Slotting.Slot (EpochNo (..))
@@ -291,6 +292,15 @@ data IntroducedInDijkstraPParams era
   , idMaxRefScriptSizePerTx :: StrictMaybe Word32
   , idRefScriptCostStride :: StrictMaybe (Ledger.NonZero Word32)
   , idRefScriptCostMultiplier :: StrictMaybe Ledger.PositiveInterval
+  , idLeiosAnnouncementPeriodLength :: StrictMaybe Ledger.Milliseconds32
+  , idLeiosVotePeriodLength :: StrictMaybe Ledger.Milliseconds32
+  , idLeiosDiffusionPeriodLength :: StrictMaybe Ledger.Milliseconds32
+  , idLeiosCommitteeSize :: StrictMaybe Word16
+  , idLeiosQuorumStakeThreshold :: StrictMaybe Ledger.UnitInterval
+  , idMaxEndorserBlockReferencesSize :: StrictMaybe Word32
+  , idMaxEndorserBlockTxsSize :: StrictMaybe Word32
+  , idMaxEndorserBlockExUnits :: StrictMaybe Plutus.OrdExUnits
+  , idMaxRefScriptSizePerEndorserBlock :: StrictMaybe Word32
   }
   deriving (Eq, Show)
 
@@ -304,6 +314,15 @@ createIntroducedInDijkstraPParams IntroducedInDijkstraPParams{..} =
     & Ledger.ppuMaxRefScriptSizePerTxL .~ idMaxRefScriptSizePerTx
     & Ledger.ppuRefScriptCostStrideL .~ idRefScriptCostStride
     & Ledger.ppuRefScriptCostMultiplierL .~ idRefScriptCostMultiplier
+    & Ledger.ppuLeiosAnnouncementPeriodLengthL .~ idLeiosAnnouncementPeriodLength
+    & Ledger.ppuLeiosVotePeriodLengthL .~ idLeiosVotePeriodLength
+    & Ledger.ppuLeiosDiffusionPeriodLengthL .~ idLeiosDiffusionPeriodLength
+    & Ledger.ppuLeiosCommitteeSizeL .~ idLeiosCommitteeSize
+    & Ledger.ppuLeiosQuorumStakeThresholdL .~ idLeiosQuorumStakeThreshold
+    & Ledger.ppuMaxEndorserBlockReferencesSizeL .~ idMaxEndorserBlockReferencesSize
+    & Ledger.ppuMaxEndorserBlockTxsSizeL .~ idMaxEndorserBlockTxsSize
+    & Ledger.ppuMaxEndorserBlockExUnitsL .~ idMaxEndorserBlockExUnits
+    & Ledger.ppuMaxRefScriptSizePerEndorserBlockL .~ idMaxRefScriptSizePerEndorserBlock
 
 pparamsUpdateToIntroducedInDijkstraPParams
   :: Ledger.DijkstraEraPParams ledgerera
@@ -315,6 +334,15 @@ pparamsUpdateToIntroducedInDijkstraPParams ppupdate =
     , idMaxRefScriptSizePerTx = ppupdate ^. Ledger.ppuMaxRefScriptSizePerTxL
     , idRefScriptCostStride = ppupdate ^. Ledger.ppuRefScriptCostStrideL
     , idRefScriptCostMultiplier = ppupdate ^. Ledger.ppuRefScriptCostMultiplierL
+    , idLeiosAnnouncementPeriodLength = ppupdate ^. Ledger.ppuLeiosAnnouncementPeriodLengthL
+    , idLeiosVotePeriodLength = ppupdate ^. Ledger.ppuLeiosVotePeriodLengthL
+    , idLeiosDiffusionPeriodLength = ppupdate ^. Ledger.ppuLeiosDiffusionPeriodLengthL
+    , idLeiosCommitteeSize = ppupdate ^. Ledger.ppuLeiosCommitteeSizeL
+    , idLeiosQuorumStakeThreshold = ppupdate ^. Ledger.ppuLeiosQuorumStakeThresholdL
+    , idMaxEndorserBlockReferencesSize = ppupdate ^. Ledger.ppuMaxEndorserBlockReferencesSizeL
+    , idMaxEndorserBlockTxsSize = ppupdate ^. Ledger.ppuMaxEndorserBlockTxsSizeL
+    , idMaxEndorserBlockExUnits = ppupdate ^. Ledger.ppuMaxEndorserBlockExUnitsL
+    , idMaxRefScriptSizePerEndorserBlock = ppupdate ^. Ledger.ppuMaxRefScriptSizePerEndorserBlockL
     }
 
 createEraBasedProtocolParamUpdate