diff --git a/containerd-shim-v2/exec.go b/containerd-shim-v2/exec.go
index 1a9146130..fcbb95e88 100644
--- a/containerd-shim-v2/exec.go
+++ b/containerd-shim-v2/exec.go
@@ -6,13 +6,13 @@
 package containerdshim
 
 import (
-	"encoding/json"
 	"fmt"
 	"strings"
 	"time"
 
 	"github.com/containerd/containerd/api/types/task"
 	"github.com/containerd/containerd/errdefs"
+	"github.com/containerd/typeurl"
 	googleProtobuf "github.com/gogo/protobuf/types"
 	"github.com/kata-containers/runtime/virtcontainers/types"
 	specs "github.com/opencontainers/runtime-spec/specs-go"
@@ -72,10 +72,15 @@ func newExec(c *container, stdin, stdout, stderr string, terminal bool, jspec *g
 	}
 
 	// process exec request
-	var spec specs.Process
-	if err := json.Unmarshal(jspec.Value, &spec); err != nil {
+	var spec *specs.Process
+	v, err := typeurl.UnmarshalAny(jspec)
+	if err != nil {
 		return nil, err
 	}
+	spec, ok := v.(*specs.Process)
+	if !ok {
+		return nil, errdefs.ToGRPCf(errdefs.ErrInvalidArgument, "Get an invalid spec type")
+	}
 
 	if spec.ConsoleSize != nil {
 		height = uint32(spec.ConsoleSize.Height)
diff --git a/containerd-shim-v2/service.go b/containerd-shim-v2/service.go
index 32dcf0cc1..2b3707dc3 100644
--- a/containerd-shim-v2/service.go
+++ b/containerd-shim-v2/service.go
@@ -7,7 +7,6 @@ package containerdshim
 
 import (
 	"context"
-	"encoding/json"
 	"io/ioutil"
 	"os"
 	sysexec "os/exec"
@@ -31,6 +30,7 @@ import (
 	"github.com/opencontainers/runtime-spec/specs-go"
 
 	"github.com/containerd/containerd/api/types/task"
+	"github.com/containerd/typeurl"
 	ptypes "github.com/gogo/protobuf/types"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
@@ -700,12 +700,17 @@ func (s *service) Update(ctx context.Context, r *taskAPI.UpdateTaskRequest) (*pt
 	s.Lock()
 	defer s.Unlock()
 
-	var resources specs.LinuxResources
-	if err := json.Unmarshal(r.Resources.Value, &resources); err != nil {
-		return empty, err
+	var resources *specs.LinuxResources
+	v, err := typeurl.UnmarshalAny(r.Resources)
+	if err != nil {
+		return nil, err
+	}
+	resources, ok := v.(*specs.LinuxResources)
+	if !ok {
+		return nil, errdefs.ToGRPCf(errdefs.ErrInvalidArgument, "Invalid resources type for %s", s.id)
 	}
 
-	err := s.sandbox.UpdateContainer(r.ID, resources)
+	err = s.sandbox.UpdateContainer(r.ID, *resources)
 	if err != nil {
 		return nil, errdefs.ToGRPC(err)
 	}