diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# Version [0.5.0.0](https://github.com/blockfrost/blockfrost-haskell/compare/v0.4.0.1...v0.5.0.0) (2022-06-06)
+
+* Fix return types of `getEpochStakeByPool` and `getEpochStakeByPool'`
+  from `StakeDistribution` to `PoolStakeDistribution`
+
 # Version [0.4.0.1](https://github.com/blockfrost/blockfrost-haskell/compare/v0.4.0.0...v0.4.0.1) (2022-04-05)
 
 * Allow servant `0.19`
diff --git a/blockfrost-client.cabal b/blockfrost-client.cabal
--- a/blockfrost-client.cabal
+++ b/blockfrost-client.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.2
 name:                blockfrost-client
-version:             0.4.0.1
+version:             0.5.0.0
 synopsis:            blockfrost.io basic client
 description:         Simple Blockfrost clients for use with transformers or mtl
 homepage:            https://github.com/blockfrost/blockfrost-haskell
@@ -64,7 +64,7 @@
                       , Blockfrost.Client.IPFS
                       , Blockfrost.Client.NutLink
    build-depends:       base                     >= 4.7 && < 5
-                      , blockfrost-api           ^>= 0.4
+                      , blockfrost-api           ^>= 0.5
                       , blockfrost-client-core
                       , bytestring
                       , directory
diff --git a/src/Blockfrost/Client/Cardano/Epochs.hs b/src/Blockfrost/Client/Cardano/Epochs.hs
--- a/src/Blockfrost/Client/Cardano/Epochs.hs
+++ b/src/Blockfrost/Client/Cardano/Epochs.hs
@@ -84,16 +84,16 @@
 getEpochStake :: MonadBlockfrost m => Epoch -> m [StakeDistribution]
 getEpochStake e = getEpochStake' e def
 
-getEpochStakeByPool_ :: MonadBlockfrost m => Project -> Epoch -> PoolId -> Paged -> m [StakeDistribution]
+getEpochStakeByPool_ :: MonadBlockfrost m => Project -> Epoch -> PoolId -> Paged -> m [PoolStakeDistribution]
 getEpochStakeByPool_ = _getEpochStakeByPool . epochsClient
 
 -- | Return the active stake distribution for the epoch specified by stake pool.
 -- Allows custom paging using @Paged@.
-getEpochStakeByPool' :: MonadBlockfrost m => Epoch -> PoolId -> Paged -> m [StakeDistribution]
+getEpochStakeByPool' :: MonadBlockfrost m => Epoch -> PoolId -> Paged -> m [PoolStakeDistribution]
 getEpochStakeByPool' e i pg = go (\p -> getEpochStakeByPool_ p e i pg)
 
 -- | Return the active stake distribution for the epoch specified by stake pool.
-getEpochStakeByPool :: MonadBlockfrost m => Epoch -> PoolId -> m [StakeDistribution]
+getEpochStakeByPool :: MonadBlockfrost m => Epoch -> PoolId -> m [PoolStakeDistribution]
 getEpochStakeByPool e i = getEpochStakeByPool' e i def
 
 getEpochBlocks_ :: MonadBlockfrost m => Project -> Epoch -> Paged -> SortOrder -> m [BlockHash]
diff --git a/src/Blockfrost/Client/Cardano/Transactions.hs b/src/Blockfrost/Client/Cardano/Transactions.hs
--- a/src/Blockfrost/Client/Cardano/Transactions.hs
+++ b/src/Blockfrost/Client/Cardano/Transactions.hs
@@ -46,7 +46,7 @@
 getTxStakes_ :: MonadBlockfrost m => Project -> TxHash -> m [TransactionStake]
 getTxStakes_ = _txStakes . transactionsClient
 
--- | Get transaction UTXOs
+-- | Get (de-)registrations of a stake address within a transaction
 getTxStakes :: MonadBlockfrost m => TxHash -> m [TransactionStake]
 getTxStakes t = go (`getTxStakes_` t)