diff --git a/CHANGELOG.md b/CHANGELOG.md
index e636dfa3aa0..f3734be80b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -81,6 +81,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * [#2390](https://github.com/osmosis-labs/osmosis/pull/2390) x/mint remove unused mintCoins parameter from AfterDistributeMintedCoin
 * [#2418](https://github.com/osmosis-labs/osmosis/pull/2418) x/mint remove SetInitialSupplyOffsetDuringMigration from keeper
 * [#2417](https://github.com/osmosis-labs/osmosis/pull/2417) x/mint unexport keeper `SetLastReductionEpochNum`, `getLastReductionEpochNum`, `CreateDeveloperVestingModuleAccount`, and `MintCoins`
+* [#2587](https://github.com/osmosis-labs/osmosis/pull/2587) remove encoding config argument from NewOsmosisApp
 
 ### Features
 
diff --git a/app/app.go b/app/app.go
index 9a7072acf3f..00c3f93f0e1 100644
--- a/app/app.go
+++ b/app/app.go
@@ -40,7 +40,6 @@ import (
 	upgradetypes "github.com/cosmos/cosmos-sdk/x/upgrade/types"
 
 	"github.com/osmosis-labs/osmosis/v11/app/keepers"
-	appparams "github.com/osmosis-labs/osmosis/v11/app/params"
 	"github.com/osmosis-labs/osmosis/v11/app/upgrades"
 	v10 "github.com/osmosis-labs/osmosis/v11/app/upgrades/v10"
 	v11 "github.com/osmosis-labs/osmosis/v11/app/upgrades/v11"
@@ -152,12 +151,12 @@ func NewOsmosisApp(
 	skipUpgradeHeights map[int64]bool,
 	homePath string,
 	invCheckPeriod uint,
-	encodingConfig appparams.EncodingConfig,
 	appOpts servertypes.AppOptions,
 	wasmEnabledProposals []wasm.ProposalType,
 	wasmOpts []wasm.Option,
 	baseAppOptions ...func(*baseapp.BaseApp),
 ) *OsmosisApp {
+	encodingConfig := MakeEncodingConfig()
 	appCodec := encodingConfig.Marshaler
 	cdc := encodingConfig.Amino
 	interfaceRegistry := encodingConfig.InterfaceRegistry
diff --git a/app/config.go b/app/config.go
index f83aa341cc3..6d271c9b836 100644
--- a/app/config.go
+++ b/app/config.go
@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/osmosis-labs/osmosis/v11/app/params"
 	dbm "github.com/tendermint/tm-db"
 
 	"github.com/cosmos/cosmos-sdk/baseapp"
@@ -30,7 +29,7 @@ func DefaultConfig() network.Config {
 		LegacyAmino:       encCfg.Amino,
 		InterfaceRegistry: encCfg.InterfaceRegistry,
 		AccountRetriever:  authtypes.AccountRetriever{},
-		AppConstructor:    NewAppConstructor(encCfg),
+		AppConstructor:    NewAppConstructor(),
 		GenesisState:      ModuleBasics.DefaultGenesis(encCfg.Marshaler),
 		TimeoutCommit:     1 * time.Second / 2,
 		ChainID:           "osmosis-code-test",
@@ -48,11 +47,10 @@ func DefaultConfig() network.Config {
 }
 
 // NewAppConstructor returns a new Osmosis app given encoding type configs.
-func NewAppConstructor(encodingCfg params.EncodingConfig) network.AppConstructor {
+func NewAppConstructor() network.AppConstructor {
 	return func(val network.Validator) servertypes.Application {
 		return NewOsmosisApp(
 			val.Ctx.Logger, dbm.NewMemDB(), nil, true, make(map[int64]bool), val.Ctx.Config.RootDir, 0,
-			encodingCfg,
 			simapp.EmptyAppOptions{},
 			GetWasmEnabledProposals(),
 			EmptyWasmOpts,
diff --git a/app/encoding.go b/app/encoding.go
index 5c29469a81a..b267d0d1d6a 100644
--- a/app/encoding.go
+++ b/app/encoding.go
@@ -6,7 +6,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/std"
 )
 
-// MakeEncodingConfig creates an EncodingConfig for testing.
+// MakeEncodingConfig creates an EncodingConfig.
 func MakeEncodingConfig() params.EncodingConfig {
 	encodingConfig := params.MakeEncodingConfig()
 	std.RegisterLegacyAminoCodec(encodingConfig.Amino)
diff --git a/app/test_helpers.go b/app/test_helpers.go
index a85c4c008ca..4e5ba6fb7cd 100644
--- a/app/test_helpers.go
+++ b/app/test_helpers.go
@@ -13,7 +13,6 @@ import (
 )
 
 var defaultGenesisBz []byte
-var defaultEncodingConfig = MakeEncodingConfig()
 
 func getDefaultGenesisStateBytes() []byte {
 	if len(defaultGenesisBz) == 0 {
@@ -30,7 +29,7 @@ func getDefaultGenesisStateBytes() []byte {
 // Setup initializes a new OsmosisApp.
 func Setup(isCheckTx bool) *OsmosisApp {
 	db := dbm.NewMemDB()
-	app := NewOsmosisApp(log.NewNopLogger(), db, nil, true, map[int64]bool{}, DefaultNodeHome, 5, defaultEncodingConfig, simapp.EmptyAppOptions{}, GetWasmEnabledProposals(), EmptyWasmOpts)
+	app := NewOsmosisApp(log.NewNopLogger(), db, nil, true, map[int64]bool{}, DefaultNodeHome, 5, simapp.EmptyAppOptions{}, GetWasmEnabledProposals(), EmptyWasmOpts)
 	if !isCheckTx {
 		stateBytes := getDefaultGenesisStateBytes()
 
@@ -54,7 +53,7 @@ func SetupTestingAppWithLevelDb(isCheckTx bool) (app *OsmosisApp, cleanupFn func
 	if err != nil {
 		panic(err)
 	}
-	app = NewOsmosisApp(log.NewNopLogger(), db, nil, true, map[int64]bool{}, DefaultNodeHome, 5, MakeEncodingConfig(), simapp.EmptyAppOptions{}, GetWasmEnabledProposals(), EmptyWasmOpts)
+	app = NewOsmosisApp(log.NewNopLogger(), db, nil, true, map[int64]bool{}, DefaultNodeHome, 5, simapp.EmptyAppOptions{}, GetWasmEnabledProposals(), EmptyWasmOpts)
 	if !isCheckTx {
 		genesisState := NewDefaultGenesisState()
 		stateBytes, err := json.MarshalIndent(genesisState, "", " ")
diff --git a/cmd/osmosisd/cmd/root.go b/cmd/osmosisd/cmd/root.go
index ad303ba8b84..9647963cdaf 100644
--- a/cmd/osmosisd/cmd/root.go
+++ b/cmd/osmosisd/cmd/root.go
@@ -274,7 +274,6 @@ func newApp(logger log.Logger, db dbm.DB, traceStore io.Writer, appOpts serverty
 		logger, db, traceStore, true, skipUpgradeHeights,
 		cast.ToString(appOpts.Get(flags.FlagHome)),
 		cast.ToUint(appOpts.Get(server.FlagInvCheckPeriod)),
-		osmosis.MakeEncodingConfig(), // Ideally, we would reuse the one created by NewRootCmd.
 		appOpts,
 		osmosis.GetWasmEnabledProposals(),
 		wasmOpts,
@@ -300,13 +299,13 @@ func createOsmosisAppAndExport(
 	encCfg.Marshaler = codec.NewProtoCodec(encCfg.InterfaceRegistry)
 	var app *osmosis.OsmosisApp
 	if height != -1 {
-		app = osmosis.NewOsmosisApp(logger, db, traceStore, false, map[int64]bool{}, "", uint(1), encCfg, appOpts, osmosis.GetWasmEnabledProposals(), osmosis.EmptyWasmOpts)
+		app = osmosis.NewOsmosisApp(logger, db, traceStore, false, map[int64]bool{}, "", uint(1), appOpts, osmosis.GetWasmEnabledProposals(), osmosis.EmptyWasmOpts)
 
 		if err := app.LoadHeight(height); err != nil {
 			return servertypes.ExportedApp{}, err
 		}
 	} else {
-		app = osmosis.NewOsmosisApp(logger, db, traceStore, true, map[int64]bool{}, "", uint(1), encCfg, appOpts, osmosis.GetWasmEnabledProposals(), osmosis.EmptyWasmOpts)
+		app = osmosis.NewOsmosisApp(logger, db, traceStore, true, map[int64]bool{}, "", uint(1), appOpts, osmosis.GetWasmEnabledProposals(), osmosis.EmptyWasmOpts)
 	}
 
 	return app.ExportAppStateAndValidators(forZeroHeight, jailWhiteList)
diff --git a/tests/simulator/sim_test.go b/tests/simulator/sim_test.go
index 8a57a743107..4986651cd28 100644
--- a/tests/simulator/sim_test.go
+++ b/tests/simulator/sim_test.go
@@ -83,7 +83,6 @@ func fullAppSimulation(tb testing.TB, is_testing bool) {
 		map[int64]bool{},
 		app.DefaultNodeHome,
 		osmosim.FlagPeriodValue,
-		app.MakeEncodingConfig(),
 		osmosim.EmptyAppOptions{},
 		app.GetWasmEnabledProposals(),
 		app.EmptyWasmOpts,
@@ -165,7 +164,6 @@ func TestAppStateDeterminism(t *testing.T) {
 				map[int64]bool{},
 				app.DefaultNodeHome,
 				osmosim.FlagPeriodValue,
-				app.MakeEncodingConfig(),
 				osmosim.EmptyAppOptions{},
 				app.GetWasmEnabledProposals(),
 				app.EmptyWasmOpts,