diff --git a/spec/abci/abci.md b/spec/abci/abci.md
index cef54344c..b55a7fc5b 100644
--- a/spec/abci/abci.md
+++ b/spec/abci/abci.md
@@ -674,21 +674,10 @@ The data types not listed below are the same as the [core data structures](../co
 
     | Name      | Type                                                          | Description                                                                  | Field Number |
     |-----------|---------------------------------------------------------------|------------------------------------------------------------------------------|--------------|
-    | block     | [BlockParams](#blockparams)                                   | Parameters limiting the size of a block and time between consecutive blocks. | 1            |
+    | block     | [BlockParams](../core/data_structures.md#blockparams)                                   | Parameters limiting the size of a block and time between consecutive blocks. | 1            |
     | evidence  | [EvidenceParams](../core/data_structures.md#evidenceparams)   | Parameters limiting the validity of evidence of byzantine behaviour.         | 2            |
     | validator | [ValidatorParams](../core/data_structures.md#validatorparams) | Parameters limiting the types of public keys validators can use.             | 3            |
-    | version   | [BlockParams](../core/data_structures.md#versionparams)       | The ABCI application version.                                                | 4            |
-
-### BlockParams
-
-- **Fields**:
-
-    | Name      | Type  | Description                                                                                                                                                                                                 | Field Number |
-    |-----------|-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------|
-    | max_bytes | int64 | Max size of a block, in bytes.                                                                                                                                                                              | 1            |
-    | max_gas   | int64 | Max sum of `GasWanted` in a proposed block. NOTE: blocks that violate this may be committed if there are Byzantine proposers. It's the application's responsibility to handle this when processing a block! | 2            |
-
-> Note: time_iota_ms is removed from this data structure.
+    | version   | [VersionsParams](../core/data_structures.md#versionparams)       | The ABCI application version.                                                | 4            |
 
 ### ProofOps
 
diff --git a/spec/consensus/bft-time.md b/spec/consensus/bft-time.md
index 3d4421d54..cec3b91ab 100644
--- a/spec/consensus/bft-time.md
+++ b/spec/consensus/bft-time.md
@@ -45,12 +45,11 @@ rs.Proposal.Timestamp == rs.ProposalBlock.Header.Time`.
 - Furthermore, when creating the `vote` message, the following rules for determining `vote.Time` field should hold:
 
     - if `rs.LockedBlock` is defined then
-    `vote.Time = max(rs.LockedBlock.Timestamp + config.BlockTimeIota, time.Now())`, where `time.Now()`
-        denotes local Unix time in milliseconds, and `config.BlockTimeIota` is a configuration parameter that corresponds
-        to the minimum timestamp increment of the next block.
+    `vote.Time = max(rs.LockedBlock.Timestamp + time.Millisecond, time.Now())`, where `time.Now()`
+        denotes local Unix time in milliseconds
 
     - else if `rs.Proposal` is defined then
-    `vote.Time = max(rs.Proposal.Timestamp + config.BlockTimeIota, time.Now())`,
+    `vote.Time = max(rs.Proposal.Timestamp + time.Millisecond,, time.Now())`,
 
     - otherwise, `vote.Time = time.Now())`. In this case vote is for `nil` so it is not taken into account for
     the timestamp of the next block.
diff --git a/spec/core/data_structures.md b/spec/core/data_structures.md
index d2919bb8c..4906db423 100644
--- a/spec/core/data_structures.md
+++ b/spec/core/data_structures.md
@@ -445,7 +445,6 @@ func SumTruncated(bz []byte) []byte {
 |--------------|-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------|
 | max_bytes    | int64 | Max size of a block, in bytes.                                                                                                                                                                              | 1            |
 | max_gas      | int64 | Max sum of `GasWanted` in a proposed block. NOTE: blocks that violate this may be committed if there are Byzantine proposers. It's the application's responsibility to handle this when processing a block! | 2            |
-| time_iota_ms | int64 | (**Deprecated**) Unused Param                                                                                                                                                                               | 3            |
 
 ### EvidenceParams