diff --git a/docker/Dockerfile b/docker/Dockerfile
index 71a078b..4026237 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -29,10 +29,10 @@ RUN chmod 555 /app/api
 RUN apk add --no-cache bash ca-certificates
 
 # Install Deco
-ARG DECO_VERSION=1.0.2
+ARG DECO_VERSION=1.3.0
 ARG DECO_OS=linux
 ARG DECO_ARCH=amd64
-ADD https://github.com/YaleUniversity/deco/releases/download/v${DECO_VERSION}/deco-v${DECO_VERSION}-${DECO_OS}-${DECO_ARCH}.tar.gz /usr/local/bin/deco.tar.gz
+ADD https://github.com/YaleUniversity/deco/releases/download/v${DECO_VERSION}/deco_${DECO_VERSION}_${DECO_OS}_${DECO_ARCH}.tar.gz /usr/local/bin/deco.tar.gz
 RUN cd /usr/local/bin && tar -zxvf deco.tar.gz && rm -f deco.tar.gz && chmod 555 deco && /usr/local/bin/deco version
 
 COPY docker/*_config.sh /app
diff --git a/ec2/instances.go b/ec2/instances.go
index 45c80b9..4f9db42 100644
--- a/ec2/instances.go
+++ b/ec2/instances.go
@@ -67,6 +67,9 @@ func (e *Ec2) GetInstance(ctx context.Context, id string) (*ec2.Instance, error)
 
 	out, err := e.Service.DescribeInstancesWithContext(ctx, &ec2.DescribeInstancesInput{
 		InstanceIds: aws.StringSlice([]string{id}),
+		Filters: []*ec2.Filter{
+			notTerminated(),
+		},
 	})
 
 	if err != nil {
@@ -75,8 +78,12 @@ func (e *Ec2) GetInstance(ctx context.Context, id string) (*ec2.Instance, error)
 
 	log.Debugf("got output for instance %s: %+v", id, out)
 
+	if len(out.Reservations) == 0 || len(out.Reservations[0].Instances) == 0 {
+		return nil, apierror.New(apierror.ErrNotFound, "Resource not found", nil)
+	}
+
 	if len(out.Reservations) != 1 || len(out.Reservations[0].Instances) != 1 {
-		return nil, apierror.New(apierror.ErrBadRequest, "unexpected count", nil)
+		return nil, apierror.New(apierror.ErrBadRequest, "Unexpected resource count", nil)
 	}
 
 	return out.Reservations[0].Instances[0], nil
diff --git a/ec2/instances_test.go b/ec2/instances_test.go
new file mode 100644
index 0000000..0974618
--- /dev/null
+++ b/ec2/instances_test.go
@@ -0,0 +1,81 @@
+package ec2
+
+import (
+	"context"
+	"reflect"
+	"testing"
+
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/request"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/ec2"
+	"github.com/aws/aws-sdk-go/service/ec2/ec2iface"
+)
+
+func (m *mockEC2Client) DescribeInstancesWithContext(ctx context.Context, input *ec2.DescribeInstancesInput, opts ...request.Option) (*ec2.DescribeInstancesOutput, error) {
+	if m.err != nil {
+		return nil, m.err
+	}
+
+	if len(input.InstanceIds) != 0 && aws.StringValue(input.InstanceIds[0]) == "i-notfound" {
+		return &ec2.DescribeInstancesOutput{}, nil
+	} else if len(input.InstanceIds) != 0 && aws.StringValue(input.InstanceIds[0]) == "i-multiple" {
+		return &ec2.DescribeInstancesOutput{
+			Reservations: []*ec2.Reservation{},
+		}, nil
+	}
+
+	return nil, nil
+}
+
+func TestEc2_GetInstance(t *testing.T) {
+	type fields struct {
+		session         *session.Session
+		Service         ec2iface.EC2API
+		DefaultKMSKeyId string
+		DefaultSgs      []string
+		DefaultSubnets  []string
+		org             string
+	}
+	type args struct {
+		ctx context.Context
+		id  string
+	}
+	tests := []struct {
+		name    string
+		fields  fields
+		args    args
+		want    *ec2.Instance
+		wantErr bool
+	}{
+		{
+			name:   "empty id",
+			fields: fields{Service: newmockEC2Client(t, nil)},
+			args: args{
+				ctx: context.TODO(),
+				id:  "",
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			e := &Ec2{
+				session:         tt.fields.session,
+				Service:         tt.fields.Service,
+				DefaultKMSKeyId: tt.fields.DefaultKMSKeyId,
+				DefaultSgs:      tt.fields.DefaultSgs,
+				DefaultSubnets:  tt.fields.DefaultSubnets,
+				org:             tt.fields.org,
+			}
+			got, err := e.GetInstance(tt.args.ctx, tt.args.id)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Ec2.GetInstance() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("Ec2.GetInstance() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}