diff --git a/kyaml/go.mod b/kyaml/go.mod
index d5f040200..d60788ff8 100644
--- a/kyaml/go.mod
+++ b/kyaml/go.mod
@@ -16,8 +16,8 @@ require (
 	github.com/stretchr/testify v1.5.1
 	github.com/xlab/treeprint v0.0.0-20181112141820-a009c3971eca
 	go.starlark.net v0.0.0-20200306205701-8dd3e2ee1dd5
+	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15
 	gopkg.in/yaml.v2 v2.4.0
-	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776
 	k8s.io/kube-openapi v0.0.0-20210421082810-95288971da7e
 )
 
diff --git a/kyaml/go.sum b/kyaml/go.sum
index 6d1920b01..ab2613f86 100644
--- a/kyaml/go.sum
+++ b/kyaml/go.sum
@@ -218,7 +218,6 @@ gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 k8s.io/gengo v0.0.0-20200413195148-3a45101e95ac/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
diff --git a/kyaml/setters2/set.go b/kyaml/setters2/set.go
index 9ac229c83..a6095ca63 100644
--- a/kyaml/setters2/set.go
+++ b/kyaml/setters2/set.go
@@ -8,12 +8,12 @@ import (
 	"strings"
 	"text/template"
 
-	goyaml "gopkg.in/yaml.v3"
 	"k8s.io/kube-openapi/pkg/validation/spec"
 	"k8s.io/kube-openapi/pkg/validation/strfmt"
 	"k8s.io/kube-openapi/pkg/validation/validate"
 	"sigs.k8s.io/kustomize/kyaml/errors"
 	"sigs.k8s.io/kustomize/kyaml/fieldmeta"
+	goyaml "sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 	"sigs.k8s.io/kustomize/kyaml/kio"
 	"sigs.k8s.io/kustomize/kyaml/kio/kioutil"
 	"sigs.k8s.io/kustomize/kyaml/openapi"
diff --git a/kyaml/yaml/alias.go b/kyaml/yaml/alias.go
index 342b6df73..56cd2c64c 100644
--- a/kyaml/yaml/alias.go
+++ b/kyaml/yaml/alias.go
@@ -7,7 +7,7 @@ import (
 	"bytes"
 	"io"
 
-	"gopkg.in/yaml.v3"
+	"sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 )
 
 // Expose the yaml.v3 functions so this package can be used as a replacement
diff --git a/kyaml/yaml/compatibility.go b/kyaml/yaml/compatibility.go
index 77b0f6db0..1adc5c008 100644
--- a/kyaml/yaml/compatibility.go
+++ b/kyaml/yaml/compatibility.go
@@ -8,8 +8,8 @@ import (
 	"strings"
 
 	y1_1 "gopkg.in/yaml.v2"
-	y1_2 "gopkg.in/yaml.v3"
 	"k8s.io/kube-openapi/pkg/validation/spec"
+	y1_2 "sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 )
 
 // typeToTag maps OpenAPI schema types to yaml 1.2 tags
diff --git a/kyaml/yaml/fns.go b/kyaml/yaml/fns.go
index ab01b9815..5289997dd 100644
--- a/kyaml/yaml/fns.go
+++ b/kyaml/yaml/fns.go
@@ -10,8 +10,8 @@ import (
 	"strings"
 
 	"github.com/davecgh/go-spew/spew"
-	"gopkg.in/yaml.v3"
 	"sigs.k8s.io/kustomize/kyaml/errors"
+	"sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 )
 
 // Append creates an ElementAppender
diff --git a/kyaml/yaml/fns_test.go b/kyaml/yaml/fns_test.go
index a4e5db98f..3c7377877 100644
--- a/kyaml/yaml/fns_test.go
+++ b/kyaml/yaml/fns_test.go
@@ -8,7 +8,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"gopkg.in/yaml.v3"
+	"sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 	. "sigs.k8s.io/kustomize/kyaml/yaml"
 )
 
diff --git a/kyaml/yaml/kfns.go b/kyaml/yaml/kfns.go
index d9e5dfaf6..2ae8c1665 100644
--- a/kyaml/yaml/kfns.go
+++ b/kyaml/yaml/kfns.go
@@ -4,8 +4,8 @@
 package yaml
 
 import (
-	"gopkg.in/yaml.v3"
 	"sigs.k8s.io/kustomize/kyaml/errors"
+	"sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 )
 
 // AnnotationClearer removes an annotation at metadata.annotations.
diff --git a/kyaml/yaml/rnode.go b/kyaml/yaml/rnode.go
index e0678a7eb..f7e3f230c 100644
--- a/kyaml/yaml/rnode.go
+++ b/kyaml/yaml/rnode.go
@@ -12,8 +12,8 @@ import (
 	"strconv"
 	"strings"
 
-	"gopkg.in/yaml.v3"
 	"sigs.k8s.io/kustomize/kyaml/errors"
+	"sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 	"sigs.k8s.io/kustomize/kyaml/yaml/internal/k8sgen/pkg/labels"
 )
 
diff --git a/kyaml/yaml/rnode_test.go b/kyaml/yaml/rnode_test.go
index 12843a99e..3cce6f0ac 100644
--- a/kyaml/yaml/rnode_test.go
+++ b/kyaml/yaml/rnode_test.go
@@ -12,7 +12,7 @@ import (
 	"github.com/google/go-cmp/cmp"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
-	"gopkg.in/yaml.v3"
+	"sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 )
 
 func TestRNodeHasNilEntryInList(t *testing.T) {
diff --git a/kyaml/yaml/serialization.go b/kyaml/yaml/serialization.go
index 9f2c6a3e4..26f15d386 100644
--- a/kyaml/yaml/serialization.go
+++ b/kyaml/yaml/serialization.go
@@ -3,7 +3,7 @@
 
 package yaml
 
-import "gopkg.in/yaml.v3"
+import "sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 
 func DoSerializationHacksOnNodes(nodes []*RNode) {
 	for _, node := range nodes {
diff --git a/kyaml/yaml/types.go b/kyaml/yaml/types.go
index 81def6c87..c4e06a578 100644
--- a/kyaml/yaml/types.go
+++ b/kyaml/yaml/types.go
@@ -7,8 +7,8 @@ import (
 	"bytes"
 	"strings"
 
-	"gopkg.in/yaml.v3"
 	"sigs.k8s.io/kustomize/kyaml/errors"
+	"sigs.k8s.io/kustomize/kyaml/internal/forked/github.com/go-yaml/yaml"
 	"sigs.k8s.io/kustomize/kyaml/sets"
 )