diff --git a/x/tx/CHANGELOG.md b/x/tx/CHANGELOG.md
index 9bc399cf97..8cebd933f4 100644
--- a/x/tx/CHANGELOG.md
+++ b/x/tx/CHANGELOG.md
@@ -31,13 +31,16 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
+## v0.9.0
+
 ### Bug Fixes
 
-* [#16681](https://github.com/cosmos/cosmos-sdk/pull/16681): catch and fix `(*Decoder).Decode` crash from invalid length prefix in Tx bytes
+* [#16681](https://github.com/cosmos/cosmos-sdk/pull/16681): Catch and fix `(*Decoder).Decode` crash from invalid length prefix in Tx bytes.
 
 ### Improvements
 
-* [#16684](https://github.com/cosmos/cosmos-sdk/pull/16684): x/tx/signing/aminojson: use io.WriteString+fmt.Fprintf to remove unnecessary string->[]byte roundtrip
+* [#16846](https://github.com/cosmos/cosmos-sdk/pull/16846): Harmonize interface `signing.TypeResolver` with the rest of the codebase (orm and client/v2).
+* [#16684](https://github.com/cosmos/cosmos-sdk/pull/16684): Use `io.WriteString`+`fmt.Fprintf` to remove unnecessary `string`->`[]byte` roundtrip.
 
 ## v0.8.0
 
diff --git a/x/tx/signing/aminojson/aminojson.go b/x/tx/signing/aminojson/aminojson.go
index 5d4c3136f5..b0da26dfa4 100644
--- a/x/tx/signing/aminojson/aminojson.go
+++ b/x/tx/signing/aminojson/aminojson.go
@@ -22,7 +22,7 @@ type SignModeHandler struct {
 // SignModeHandlerOptions are the options for the SignModeHandler.
 type SignModeHandlerOptions struct {
 	FileResolver signing.ProtoFileResolver
-	TypeResolver protoregistry.MessageTypeResolver
+	TypeResolver signing.TypeResolver
 	Encoder      *Encoder
 }
 
diff --git a/x/tx/signing/aminojson/json_marshal.go b/x/tx/signing/aminojson/json_marshal.go
index c4a97db01f..349f84348d 100644
--- a/x/tx/signing/aminojson/json_marshal.go
+++ b/x/tx/signing/aminojson/json_marshal.go
@@ -26,7 +26,7 @@ type EncoderOptions struct {
 	// DonotSortFields when set turns off sorting of field names.
 	DoNotSortFields bool
 	// TypeResolver is used to resolve protobuf message types by TypeURL when marshaling any packed messages.
-	TypeResolver protoregistry.MessageTypeResolver
+	TypeResolver signing.TypeResolver
 	// FileResolver is used to resolve protobuf file descriptors TypeURL when TypeResolver fails.
 	FileResolver signing.ProtoFileResolver
 }
diff --git a/x/tx/signing/context.go b/x/tx/signing/context.go
index c4e99bdf20..ba2ad52c92 100644
--- a/x/tx/signing/context.go
+++ b/x/tx/signing/context.go
@@ -14,6 +14,11 @@ import (
 	"cosmossdk.io/core/address"
 )
 
+type TypeResolver interface {
+	protoregistry.MessageTypeResolver
+	protoregistry.ExtensionTypeResolver
+}
+
 // Context is a context for retrieving the list of signers from a
 // message where signers are specified by the cosmos.msg.v1.signer protobuf
 // option. It also contains the ProtoFileResolver and address.Codec's used
@@ -34,7 +39,7 @@ type Options struct {
 	FileResolver ProtoFileResolver
 
 	// TypeResolver is the protobuf type resolver to use for resolving message types.
-	TypeResolver protoregistry.MessageTypeResolver
+	TypeResolver TypeResolver
 
 	// AddressCodec is the codec for converting addresses between strings and bytes.
 	AddressCodec address.Codec
diff --git a/x/tx/signing/textual/fuzz_test.go b/x/tx/signing/textual/fuzz_test.go
index 7df64de615..bdbf1be243 100644
--- a/x/tx/signing/textual/fuzz_test.go
+++ b/x/tx/signing/textual/fuzz_test.go
@@ -222,6 +222,8 @@ var (
 )
 
 func FuzzCoinsJSONTestcases(f *testing.F) {
+	f.Skip() // https://github.com/cosmos/cosmos-sdk/pull/16521#issuecomment-1614507574
+
 	// Generate some seeds.
 	seed, err := os.ReadFile("./internal/testdata/coins.json")
 	if err != nil {