diff --git a/THIRD_PARTY_LICENSES.txt b/THIRD_PARTY_LICENSES.txt
index 8c86c7b..aea6ad2 100644
--- a/THIRD_PARTY_LICENSES.txt
+++ b/THIRD_PARTY_LICENSES.txt
@@ -1,10 +1,11 @@
 github.com/verrazzano/pkg
 -------- Copyrights
-Copyright (c) 2020 Oracle America, Inc. and its affiliates. 
+Copyright (c) 2021 Oracle America, Inc. and its affiliates.
+Copyright (c) 2021, Oracle and/or its affiliates.
 Copyright (C) 2021, Oracle and/or its affiliates.
 
 -------- License
-Copyright (c) 2020 Oracle America, Inc. and its affiliates. 
+Copyright (c) 2021 Oracle America, Inc. and its affiliates.
 
 The Universal Permissive License (UPL), Version 1.0
 
@@ -85,4 +86,4 @@ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 ATTRIBUTION-HELPER-GENERATED:
-License file based on go.mod with md5 sum: ceeb284685d01c120a0c982ef88a56e7
+License file based on go.mod with md5 sum: ad8ff9601475c864dcd8d768548e6017
diff --git a/diff/diff_test.go b/diff/diff_test.go
index 783d055..b51d420 100644
--- a/diff/diff_test.go
+++ b/diff/diff_test.go
@@ -13,6 +13,7 @@ import (
 	"github.com/stretchr/testify/assert"
 	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
 
 	"testing"
 )
@@ -185,6 +186,33 @@ func TestTimes(t *testing.T) {
 	verifyDiff(t, fromObj, toObj, true, "Time changed")
 }
 
+func TestResources(t *testing.T) {
+	r1 := corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceMemory: resource.MustParse("1024Mi")}}
+	r2 := corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceMemory: resource.MustParse("1Gi")}}
+	verifyDiff(t, r1, r2, false, "Same resource, different units")
+	r1 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceMemory: resource.MustParse("1028Mi")}}
+	r2 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceMemory: resource.MustParse("1Gi")}}
+	verifyDiff(t, r1, r2, true, "Different resource, different units")
+	r1 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceMemory: resource.MustParse("1028Mi")}}
+	r2 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceMemory: resource.MustParse("1030Mi")}}
+	verifyDiff(t, r1, r2, true, "Different resource, same units")
+	r1 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1000m")}}
+	r2 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1")}}
+	verifyDiff(t, r1, r2, false, "Same resource, different units")
+	r1 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1001m")}}
+	r2 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1")}}
+	verifyDiff(t, r1, r2, true, "Different resource, different units")
+	r1 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1001m")}}
+	r2 = corev1.ResourceRequirements{Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1002m")}}
+	verifyDiff(t, r1, r2, true, "Different resource, same units")
+	r1 = corev1.ResourceRequirements{Requests: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1000m")}, Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("3000m")}}
+	r2 = corev1.ResourceRequirements{Requests: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1")}, Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("3")}}
+	verifyDiff(t, r1, r2, false, "Same resources, different units")
+	r1 = corev1.ResourceRequirements{Requests: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1001m")}, Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1000m")}}
+	r2 = corev1.ResourceRequirements{Requests: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1")}, Limits: corev1.ResourceList{corev1.ResourceCPU: resource.MustParse("1")}}
+	verifyDiff(t, r1, r2, true, "Different units for limits (but same resource), different resource for requests")
+}
+
 // One unit test that contains a complex diff and actually verifies the full output
 func TestOutput(t *testing.T) {
 	fromObj := X{
diff --git a/go.mod b/go.mod
index 7b2e350..e02bdc5 100644
--- a/go.mod
+++ b/go.mod
@@ -9,6 +9,10 @@ require (
 	github.com/google/go-cmp v0.5.0
 	github.com/stretchr/testify v1.6.1
 	k8s.io/api v0.19.0
+	k8s.io/apimachinery v0.21.1
 )
 
-replace k8s.io/api => k8s.io/api v0.18.6
+replace (
+	k8s.io/api => k8s.io/api v0.18.6
+	k8s.io/apimachinery => k8s.io/apimachinery v0.18.6
+)