diff --git a/CHANGELOG.md b/CHANGELOG.md
index aaf81ff92dee..7f3283bf5ed7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -45,6 +45,10 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 * (cli) [\#9717](https://github.com/cosmos/cosmos-sdk/pull/9717) Added CLI flag `--output json/text` to `tx` cli commands.
 
+### Bug Fixes
+
+* [\#9793](https://github.com/cosmos/cosmos-sdk/pull/9793) Fixed ECDSA/secp256r1 transaction malleability.
+
 ## [v0.43.0-rc2](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.43.0-rc2) - 2021-07-19
 
 ### Bug Fixes
diff --git a/crypto/keys/internal/ecdsa/privkey.go b/crypto/keys/internal/ecdsa/privkey.go
index 088d85bf2f53..690c07670d64 100644
--- a/crypto/keys/internal/ecdsa/privkey.go
+++ b/crypto/keys/internal/ecdsa/privkey.go
@@ -12,13 +12,7 @@ import (
 // p256Order returns the curve order for the secp256r1 curve
 // NOTE: this is specific to the secp256r1/P256 curve,
 // and not taken from the domain params for the key itself
-// (which would be a more generic approach for all EC)
-// In *here* we don't need to do it as a method on the key
-// since this code is only called for secp256r1
-// if called on a key:
-// func (sk PrivKey) pCurveOrder() *.big.Int {
-//     return sk.Curve.Params().N
-// }
+// (which would be a more generic approach for all EC).
 var p256Order = elliptic.P256().Params().N
 
 // p256HalfOrder returns half the curve order
diff --git a/server/grpc/gogoreflection/fix_registration.go b/server/grpc/gogoreflection/fix_registration.go
index 6575f782d3aa..ab7750574845 100644
--- a/server/grpc/gogoreflection/fix_registration.go
+++ b/server/grpc/gogoreflection/fix_registration.go
@@ -9,6 +9,7 @@ import (
 	_ "github.com/gogo/protobuf/gogoproto" // required so it does register the gogoproto file descriptor
 	gogoproto "github.com/gogo/protobuf/proto"
 
+	// nolint: staticcheck
 	"github.com/golang/protobuf/proto"
 	dpb "github.com/golang/protobuf/protoc-gen-go/descriptor"
 	_ "github.com/regen-network/cosmos-proto" // look above
@@ -85,7 +86,7 @@ func getFileDescriptor(filePath string) []byte {
 	if len(fd) != 0 {
 		return fd
 	}
-
+	// nolint: staticcheck
 	return proto.FileDescriptor(filePath)
 }
 
@@ -94,7 +95,7 @@ func getMessageType(name string) reflect.Type {
 	if typ != nil {
 		return typ
 	}
-
+	// nolint: staticcheck
 	return proto.MessageType(name)
 }
 
@@ -106,7 +107,7 @@ func getExtension(extID int32, m proto.Message) *gogoproto.ExtensionDesc {
 		}
 	}
 	// check into proto registry
-
+	// nolint: staticcheck
 	for id, desc := range proto.RegisteredExtensions(m) {
 		if id == extID {
 			return &gogoproto.ExtensionDesc{
@@ -132,7 +133,7 @@ func getExtensionsNumbers(m proto.Message) []int32 {
 	if len(out) != 0 {
 		return out
 	}
-
+	// nolint: staticcheck
 	protoExts := proto.RegisteredExtensions(m)
 	out = make([]int32, 0, len(protoExts))
 	for id := range protoExts {
diff --git a/server/grpc/gogoreflection/serverreflection.go b/server/grpc/gogoreflection/serverreflection.go
index 102a8d2aaeff..c2a0828e3bc2 100644
--- a/server/grpc/gogoreflection/serverreflection.go
+++ b/server/grpc/gogoreflection/serverreflection.go
@@ -47,6 +47,7 @@ import (
 	"sort"
 	"sync"
 
+	// nolint: staticcheck
 	"github.com/golang/protobuf/proto"
 	dpb "github.com/golang/protobuf/protoc-gen-go/descriptor"
 	"google.golang.org/grpc"
diff --git a/x/auth/tx/service.go b/x/auth/tx/service.go
index d91fdcccf1c2..a0deedae6aa2 100644
--- a/x/auth/tx/service.go
+++ b/x/auth/tx/service.go
@@ -6,7 +6,7 @@ import (
 	"strings"
 
 	gogogrpc "github.com/gogo/protobuf/grpc"
-	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/proto" // nolint: staticcheck
 	"github.com/grpc-ecosystem/grpc-gateway/runtime"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"