diff --git a/go.mod b/go.mod
index bcefbb4d0..2369883c6 100644
--- a/go.mod
+++ b/go.mod
@@ -31,11 +31,11 @@ require (
 	github.com/stretchr/testify v1.7.0
 	golang.org/x/sys v0.0.0-20210616094352-59db8d763f22
 	gopkg.in/yaml.v2 v2.4.0
-	k8s.io/api v0.0.0-20210720141931-aa30bdaf750c
-	k8s.io/apimachinery v0.0.0-20210712060818-a644435e2c13
+	k8s.io/api v0.0.0-20210805120319-7a35d40d43ac
+	k8s.io/apimachinery v0.0.0-20210805051055-f7769293e6f1
 	k8s.io/cli-runtime v0.0.0-20210730024628-6149e6a4cfd2
-	k8s.io/client-go v0.0.0-20210805040553-3c86d4a9204c
-	k8s.io/component-base v0.0.0-20210730023241-ad5ac9575950
+	k8s.io/client-go v0.0.0-20210805080552-fa98c048508e
+	k8s.io/component-base v0.0.0-20210805120716-92bebfd2c985
 	k8s.io/component-helpers v0.0.0-20210730023343-748d9b69b67b
 	k8s.io/klog/v2 v2.9.0
 	k8s.io/kube-openapi v0.0.0-20210421082810-95288971da7e
@@ -47,12 +47,12 @@ require (
 )
 
 replace (
-	k8s.io/api => k8s.io/api v0.0.0-20210720141931-aa30bdaf750c
-	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20210712060818-a644435e2c13
+	k8s.io/api => k8s.io/api v0.0.0-20210805120319-7a35d40d43ac
+	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20210805051055-f7769293e6f1
 	k8s.io/cli-runtime => k8s.io/cli-runtime v0.0.0-20210730024628-6149e6a4cfd2
-	k8s.io/client-go => k8s.io/client-go v0.0.0-20210805040553-3c86d4a9204c
-	k8s.io/code-generator => k8s.io/code-generator v0.0.0-20210729231338-96aa56dd4857
-	k8s.io/component-base => k8s.io/component-base v0.0.0-20210730023241-ad5ac9575950
+	k8s.io/client-go => k8s.io/client-go v0.0.0-20210805080552-fa98c048508e
+	k8s.io/code-generator => k8s.io/code-generator v0.0.0-20210805155932-09c829015078
+	k8s.io/component-base => k8s.io/component-base v0.0.0-20210805120716-92bebfd2c985
 	k8s.io/component-helpers => k8s.io/component-helpers v0.0.0-20210730023343-748d9b69b67b
 	k8s.io/metrics => k8s.io/metrics v0.0.0-20210730024519-ae7ef8fabb7f
 )
diff --git a/go.sum b/go.sum
index ad45f1fe1..43f6bd39d 100644
--- a/go.sum
+++ b/go.sum
@@ -737,17 +737,17 @@ honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
-k8s.io/api v0.0.0-20210720141931-aa30bdaf750c h1:bQDI22QyjupmAGqhbVE2uIkAkAAVEVfTf/n8RG/Xtpo=
-k8s.io/api v0.0.0-20210720141931-aa30bdaf750c/go.mod h1:FtqZiusVhnyM5jUPPFkDCU91OKo0sOpX9b9hotVGbIk=
-k8s.io/apimachinery v0.0.0-20210712060818-a644435e2c13 h1:Y40e5ho6n8KOvBCqdz/jm7ssKQyQLQdbZbC3lR9TaCU=
-k8s.io/apimachinery v0.0.0-20210712060818-a644435e2c13/go.mod h1:O3oNtNadZdeOMxHFVxOreoznohCpy0z6mocxbZr7oJ0=
+k8s.io/api v0.0.0-20210805120319-7a35d40d43ac h1:Wu1nE5Lz+WstOMn+yT1unlEh/w2eXTQ+cWeD8m/YQYE=
+k8s.io/api v0.0.0-20210805120319-7a35d40d43ac/go.mod h1:9J6nkHavSazyXmPeuA4f1YO9Ztdjw7nDibPjT4P+wsY=
+k8s.io/apimachinery v0.0.0-20210805051055-f7769293e6f1 h1:cVpwhaGeh/tNPBeYbFff3tjx5AxwG5zwImhz+eusG3k=
+k8s.io/apimachinery v0.0.0-20210805051055-f7769293e6f1/go.mod h1:O3oNtNadZdeOMxHFVxOreoznohCpy0z6mocxbZr7oJ0=
 k8s.io/cli-runtime v0.0.0-20210730024628-6149e6a4cfd2 h1:QALxbHPQ2sJBgghE+LGMtnt2tcNsMCmwXEDAbkHeE9o=
 k8s.io/cli-runtime v0.0.0-20210730024628-6149e6a4cfd2/go.mod h1:LN2ZcbXYsFL0imoBy/LfNOLA6m6N7jXV5V/09Azb848=
-k8s.io/client-go v0.0.0-20210805040553-3c86d4a9204c h1:rlOc3ZYYC/aeKMSHlrWNbUrc+i2iXKlqZe5XcEvmSo8=
-k8s.io/client-go v0.0.0-20210805040553-3c86d4a9204c/go.mod h1:giP+QzPQ7YrInF4wp+jzA8oSh6o+9Nb+r2XCIzGIfo4=
-k8s.io/code-generator v0.0.0-20210729231338-96aa56dd4857/go.mod h1:eV77Y09IopzeXOJzndrDyCI88UBok2h6WxAlBwpxa+o=
-k8s.io/component-base v0.0.0-20210730023241-ad5ac9575950 h1:pdupX8U+ovaOPgbMpjYIbKsir253L0kxnGObXTd+ZwA=
-k8s.io/component-base v0.0.0-20210730023241-ad5ac9575950/go.mod h1:l7uRPvt9vBUPHa3RbKW7tWjhX6cVMTThTNOv48GNY+U=
+k8s.io/client-go v0.0.0-20210805080552-fa98c048508e h1:0RaerCWCkguHMpXmdiPlW+wLFkV2oojh4F/QwThEqtI=
+k8s.io/client-go v0.0.0-20210805080552-fa98c048508e/go.mod h1:MtYi0MQWcNfpAaLnshaWryCo9Le+5QnBH4dmBTOAQNc=
+k8s.io/code-generator v0.0.0-20210805155932-09c829015078/go.mod h1:0GzsSvi+8G9ZHYJnyo9pr8ojPIOFcJwEEfNLudDw5LQ=
+k8s.io/component-base v0.0.0-20210805120716-92bebfd2c985 h1:5AICcEUyTnjI3rCqtY3n7sjZRLrCtI8Ejt9jnY+24kQ=
+k8s.io/component-base v0.0.0-20210805120716-92bebfd2c985/go.mod h1:uuSJv3vcTE8Ays2CdTgQdaDyg2nYrkK3jVrLDSV3uAo=
 k8s.io/component-helpers v0.0.0-20210730023343-748d9b69b67b h1:vssLWGUWjxFjoyo2pmNJXgGqYnnBkmbzMRO883F3eHE=
 k8s.io/component-helpers v0.0.0-20210730023343-748d9b69b67b/go.mod h1:ln2gFAE6woRdvvp3DFORCBgy2XUo0iVBWEgf0iX3Sc4=
 k8s.io/gengo v0.0.0-20200413195148-3a45101e95ac/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
diff --git a/pkg/cmd/taint/taint.go b/pkg/cmd/taint/taint.go
index ec59d14c1..2a74323c8 100644
--- a/pkg/cmd/taint/taint.go
+++ b/pkg/cmd/taint/taint.go
@@ -248,7 +248,7 @@ func (o TaintOptions) Validate() error {
 				continue
 			}
 			if len(taintRemove.Effect) == 0 || taintAdd.Effect == taintRemove.Effect {
-				conflictTaint := fmt.Sprintf("{\"%s\":\"%s\"}", taintRemove.Key, taintRemove.Effect)
+				conflictTaint := fmt.Sprintf("%s=%s", taintRemove.Key, taintRemove.Effect)
 				conflictTaints = append(conflictTaints, conflictTaint)
 			}
 		}
diff --git a/pkg/cmd/taint/taint_test.go b/pkg/cmd/taint/taint_test.go
index a154c97df..02fd13be9 100644
--- a/pkg/cmd/taint/taint_test.go
+++ b/pkg/cmd/taint/taint_test.go
@@ -216,6 +216,12 @@ func TestTaint(t *testing.T) {
 			expectFatal: true,
 			expectTaint: false,
 		},
+		{
+			description: "add and remove taint with same key and effect should be rejected",
+			args:        []string{"node", "node-name", "foo=:NoExcute", "foo=:NoExcute-"},
+			expectFatal: true,
+			expectTaint: false,
+		},
 		{
 			description: "can't update existing taint on the node, since 'overwrite' flag is not set",
 			oldTaints: []corev1.Taint{{