diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72ca070..53ec79b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,17 @@ This format is based on [Keep A Changelog](https://keepachangelog.com/en/1.0.0).
 
 ### Modified
 
+- Use `Credential` instead of `PubKeyHash`
+
+  Included by [#158](https://github.com/Liqwid-Labs/agora/pull/158).
+
+  NOTE: This changes the representation of the following types:
+  
+  - `PStakeDatum`
+  - `PStakeRedeemer`
+  - `PProposalDatum`
+  - `PProposalRedeemer`
+
 - Use plutus v2 types.
 
   Included by [#156](https://github.com/Liqwid-Labs/agora/pull/156).
diff --git a/agora/Agora/Credential.hs b/agora/Agora/Credential.hs
index c772851..b42d91b 100644
--- a/agora/Agora/Credential.hs
+++ b/agora/Agora/Credential.hs
@@ -5,30 +5,21 @@ Description: Functions for dealing with generalized credentials.
 
 Functions for dealing with generalized credentials.
 -}
-module Agora.Credential (PAuthorizationCredential, AuthorizationCredential, pauthorizedBy, authorizationContext) where
+module Agora.Credential (
+  pauthorizedBy,
+  authorizationContext,
+) where
 
 import GHC.Records (HasField)
-import Plutarch.Api.V1 (PCredential (..), PPubKeyHash)
-import Plutarch.Api.V2 (PTxInInfo (..))
+import Plutarch.Api.V1 (PCredential (PPubKeyCredential, PScriptCredential), PPubKeyHash)
+import Plutarch.Api.V2 (PTxInInfo)
 import Plutarch.Extra.ScriptContext (ptxSignedBy)
 import Plutarch.Extra.TermCont (pmatchC)
-import PlutusLedgerApi.V2 (Credential)
-
-{- | This type represents a general purpose authority which can be used
-     to check for approval.
-
-     The most basic case is simply a PubKeyCredential.
-
-     @since 1.0.0
--}
-type AuthorizationCredential =
-  Credential
-
-type PAuthorizationCredential =
-  PCredential
 
 {- | Context required in order to check 'AuthorizationCredential'.
 
+     Construct using 'authorizationContext'.
+
      @since 1.0.0
 -}
 data PAuthorizationContext (s :: S) = PAuthorizationContext
@@ -55,7 +46,7 @@ instance DerivePlutusType PAuthorizationContext where
      @since 1.0.0
 -}
 authorizationContext ::
-  forall {r} {s :: S}.
+  forall (s :: S) r.
   ( HasField "inputs" r (Term s (PBuiltinList PTxInInfo))
   , HasField "signatories" r (Term s (PBuiltinList (PAsData PPubKeyHash)))
   ) =>
@@ -68,7 +59,7 @@ authorizationContext f =
 
      @since 1.0.0
 -}
-pauthorizedBy :: forall (s :: S). Term s (PAuthorizationContext :--> PAuthorizationCredential :--> PBool)
+pauthorizedBy :: forall (s :: S). Term s (PAuthorizationContext :--> PCredential :--> PBool)
 pauthorizedBy = phoistAcyclic $
   plam $ \ctx credential -> unTermCont $ do
     ctxF <- pmatchC ctx
diff --git a/agora/Agora/Proposal.hs b/agora/Agora/Proposal.hs
index e18984d..9b71989 100644
--- a/agora/Agora/Proposal.hs
+++ b/agora/Agora/Proposal.hs
@@ -42,7 +42,6 @@ module Agora.Proposal (
   pisProposalThresholdsValid,
 ) where
 
-import Agora.Credential (AuthorizationCredential, PAuthorizationCredential)
 import Agora.Plutarch.Orphans ()
 import Agora.Proposal.Time (
   PProposalStartingTime,
@@ -53,7 +52,7 @@ import Agora.Proposal.Time (
 import Agora.SafeMoney (GTTag)
 import Data.Tagged (Tagged)
 import Generics.SOP qualified as SOP
-import Plutarch.Api.V1 (PMap, PValidatorHash)
+import Plutarch.Api.V1 (PCredential, PMap, PValidatorHash)
 import Plutarch.Api.V1.AssocMap qualified as PAssocMap
 import Plutarch.Api.V2 (
   KeyGuarantees (Unsorted),
@@ -347,7 +346,7 @@ data ProposalRedeemer
     --   provided enough GT is shared among them.
     --
     --   This list should be sorted in ascending order.
-    Cosign [AuthorizationCredential]
+    Cosign [Credential]
   | -- | Allow unlocking one or more stakes with votes towards particular 'ResultTag'.
     Unlock
   | -- | Advance the proposal, performing the required checks for whether that is legal.
@@ -617,7 +616,7 @@ newtype PProposalDatum (s :: S) = PProposalDatum
             '[ "proposalId" ':= PProposalId
              , "effects" ':= PMap 'Unsorted PResultTag PProposalEffectGroup
              , "status" ':= PProposalStatus
-             , "cosigners" ':= PBuiltinList (PAsData PAuthorizationCredential)
+             , "cosigners" ':= PBuiltinList (PAsData PCredential)
              , "thresholds" ':= PProposalThresholds
              , "votes" ':= PProposalVotes
              , "timingConfig" ':= PProposalTimingConfig
@@ -656,7 +655,7 @@ deriving via (DerivePConstantViaDataList ProposalDatum PProposalDatum) instance
 -}
 data PProposalRedeemer (s :: S)
   = PVote (Term s (PDataRecord '["resultTag" ':= PResultTag]))
-  | PCosign (Term s (PDataRecord '["newCosigners" ':= PBuiltinList (PAsData PAuthorizationCredential)]))
+  | PCosign (Term s (PDataRecord '["newCosigners" ':= PBuiltinList (PAsData PCredential)]))
   | PUnlock (Term s (PDataRecord '[]))
   | PAdvanceProposal (Term s (PDataRecord '[]))
   deriving stock
diff --git a/agora/Agora/Proposal/Scripts.hs b/agora/Agora/Proposal/Scripts.hs
index 1bd3a9b..44d9f2c 100644
--- a/agora/Agora/Proposal/Scripts.hs
+++ b/agora/Agora/Proposal/Scripts.hs
@@ -10,7 +10,7 @@ module Agora.Proposal.Scripts (
   proposalPolicy,
 ) where
 
-import Agora.Credential (PAuthorizationCredential, authorizationContext, pauthorizedBy)
+import Agora.Credential (authorizationContext, pauthorizedBy)
 import Agora.Proposal (
   PProposalDatum (PProposalDatum),
   PProposalRedeemer (..),
@@ -40,6 +40,7 @@ import Agora.Stake (
 import Agora.Utils (
   pltAsData,
  )
+import Plutarch.Api.V1 (PCredential)
 import Plutarch.Api.V2 (
   PDatumHash,
   PMintingPolicy,
@@ -299,7 +300,7 @@ proposalValidator as maximumCosigners =
       Term
         _
         ( ( PInteger
-              :--> PBuiltinList (PAsData PAuthorizationCredential)
+              :--> PBuiltinList (PAsData PCredential)
               :--> PUnit
           )
             :--> PUnit