diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6d65308beab..cf6c1d6f7bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -45,6 +45,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Improvements
 
 * (apps/27-interchain-accounts) [\#6147](https://github.com/cosmos/ibc-go/pull/6147) Emit an event signalling that the host submodule is disabled.
+* (testing) [\#6180](https://github.com/cosmos/ibc-go/pull/6180) Add version to tm abci headers in ibctesting. 
 
 ### Features
 
diff --git a/testing/app.go b/testing/app.go
index 0df23c4312a..bf97e4248bb 100644
--- a/testing/app.go
+++ b/testing/app.go
@@ -10,6 +10,7 @@ import (
 	abci "github.com/cometbft/cometbft/abci/types"
 	"github.com/cometbft/cometbft/libs/log"
 	tmproto "github.com/cometbft/cometbft/proto/tendermint/types"
+	tmprotoversion "github.com/cometbft/cometbft/proto/tendermint/version"
 	tmtypes "github.com/cometbft/cometbft/types"
 	"github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/client"
@@ -62,6 +63,10 @@ func SetupTestingApp() (TestingApp, map[string]json.RawMessage) {
 // of one consensus engine unit (10^6) in the default token of the simapp from first genesis
 // account. A Nop logger is set in SimApp.
 func SetupWithGenesisValSet(t *testing.T, valSet *tmtypes.ValidatorSet, genAccs []authtypes.GenesisAccount, chainID string, powerReduction math.Int, balances ...banktypes.Balance) TestingApp {
+	return SetupWithGenesisValSetAndConsensusParams(t, simapp.DefaultConsensusParams, valSet, genAccs, chainID, powerReduction, balances...)
+}
+
+func SetupWithGenesisValSetAndConsensusParams(t *testing.T, consensusParams *tmproto.ConsensusParams, valSet *tmtypes.ValidatorSet, genAccs []authtypes.GenesisAccount, chainID string, powerReduction math.Int, balances ...banktypes.Balance) TestingApp {
 	app, genesisState := DefaultTestingAppInit()
 
 	// ensure baseapp has a chain-id set before running InitChain
@@ -136,6 +141,9 @@ func SetupWithGenesisValSet(t *testing.T, valSet *tmtypes.ValidatorSet, genAccs
 	app.BeginBlock(
 		abci.RequestBeginBlock{
 			Header: tmproto.Header{
+				Version: tmprotoversion.Consensus{
+					App: consensusParams.Version.App,
+				},
 				ChainID:            chainID,
 				Height:             app.LastBlockHeight() + 1,
 				AppHash:            app.LastCommitID().Hash,
diff --git a/testing/chain.go b/testing/chain.go
index 3c60aa86d39..b34003adc2d 100644
--- a/testing/chain.go
+++ b/testing/chain.go
@@ -128,6 +128,9 @@ func NewTestChainWithValSet(t *testing.T, coord *Coordinator, chainID string, va
 
 	// create current header and call begin block
 	header := tmproto.Header{
+		Version: tmprotoversion.Consensus{
+			App: simapp.DefaultAppVersion,
+		},
 		ChainID: chainID,
 		Height:  1,
 		Time:    coord.CurrentTime.UTC(),
@@ -296,6 +299,7 @@ func (chain *TestChain) NextBlock() {
 	chain.CurrentHeader = tmproto.Header{
 		ChainID: chain.ChainID,
 		Height:  chain.App.LastBlockHeight() + 1,
+		Version: chain.CurrentHeader.Version,
 		AppHash: chain.App.LastCommitID().Hash,
 		// NOTE: the time is increased by the coordinator to maintain time synchrony amongst
 		// chains.
@@ -476,7 +480,7 @@ func (chain *TestChain) CreateTMClientHeader(chainID string, blockHeight int64,
 	nextValHash := nextVals.Hash()
 
 	tmHeader := tmtypes.Header{
-		Version:            tmprotoversion.Consensus{Block: tmversion.BlockProtocol, App: 2},
+		Version:            tmprotoversion.Consensus{Block: tmversion.BlockProtocol, App: simapp.DefaultAppVersion},
 		ChainID:            chainID,
 		Height:             blockHeight,
 		Time:               timestamp,
diff --git a/testing/simapp/test_helpers.go b/testing/simapp/test_helpers.go
index 6c61a000727..48d93cd5c47 100644
--- a/testing/simapp/test_helpers.go
+++ b/testing/simapp/test_helpers.go
@@ -27,6 +27,8 @@ import (
 	"github.com/cosmos/ibc-go/v7/testing/mock"
 )
 
+var DefaultAppVersion uint64 = 1
+
 // DefaultConsensusParams defines the default Tendermint consensus params used in
 // SimApp testing.
 var DefaultConsensusParams = &tmproto.ConsensusParams{
@@ -44,6 +46,9 @@ var DefaultConsensusParams = &tmproto.ConsensusParams{
 			tmtypes.ABCIPubKeyTypeEd25519,
 		},
 	},
+	Version: &tmproto.VersionParams{
+		App: DefaultAppVersion,
+	},
 }
 
 func setup(withGenesis bool, invCheckPeriod uint) (*SimApp, GenesisState) {