diff --git a/specs/merge/beacon-chain.md b/specs/merge/beacon-chain.md
index 4e0c554d2..a508cb670 100644
--- a/specs/merge/beacon-chain.md
+++ b/specs/merge/beacon-chain.md
@@ -16,8 +16,6 @@
   - [Transition](#transition)
   - [Execution](#execution)
 - [Containers](#containers)
-  - [Modified containers](#modified-containers)
-    - [`Eth1Data`](#eth1data)
   - [Extended containers](#extended-containers)
     - [`BeaconBlockBody`](#beaconblockbody)
     - [`BeaconState`](#beaconstate)
@@ -49,7 +47,6 @@ We define the following Python custom types for type hinting and readability:
 | Name | SSZ equivalent | Description |
 | - | - | - |
 | `OpaqueTransaction` | `ByteList[MAX_BYTES_PER_OPAQUE_TRANSACTION]` | a byte-list containing a single [typed transaction envelope](https://eips.ethereum.org/EIPS/eip-2718#opaque-byte-array-rather-than-an-rlp-array) structured as `TransactionType \|\| TransactionPayload` |
-| `Hash32` | `Bytes32` | a 256-bit hash |
 
 ## Constants
 
@@ -69,19 +66,6 @@ We define the following Python custom types for type hinting and readability:
 
 ## Containers
 
-### Modified containers
-
-#### `Eth1Data`
-
-*Note*: The only modification is the type of `block_hash` field that is changed to `Hash32`.
-
-```python
-class Eth1Data(Container):
-    deposit_root: Root
-    deposit_count: uint64
-    block_hash: Hash32  # [Modified in Merge]
-```
-
 ### Extended containers
 
 *Note*: Extended SSZ containers inherit all fields from the parent in the original
diff --git a/specs/phase0/beacon-chain.md b/specs/phase0/beacon-chain.md
index cbd085bd3..3176d543c 100644
--- a/specs/phase0/beacon-chain.md
+++ b/specs/phase0/beacon-chain.md
@@ -157,6 +157,7 @@ We define the following Python custom types for type hinting and readability:
 | `ValidatorIndex` | `uint64` | a validator registry index |
 | `Gwei` | `uint64` | an amount in Gwei |
 | `Root` | `Bytes32` | a Merkle root |
+| `Hash32` | `Bytes32` | a 256-bit hash |
 | `Version` | `Bytes4` | a fork version number |
 | `DomainType` | `Bytes4` | a domain type |
 | `ForkDigest` | `Bytes4` | a digest of the current fork data |
@@ -164,6 +165,7 @@ We define the following Python custom types for type hinting and readability:
 | `BLSPubkey` | `Bytes48` | a BLS12-381 public key |
 | `BLSSignature` | `Bytes96` | a BLS12-381 signature |
 
+
 ## Constants
 
 The following values are (non-configurable) constants used throughout the specification.
@@ -374,7 +376,7 @@ class PendingAttestation(Container):
 class Eth1Data(Container):
     deposit_root: Root
     deposit_count: uint64
-    block_hash: Bytes32
+    block_hash: Hash32
 ```
 
 #### `HistoricalBatch`