diff --git a/.github/kind-cluster-1.19.yaml b/.github/kind-cluster-1.19.yaml
index 958c86d..05fedd2 100644
--- a/.github/kind-cluster-1.19.yaml
+++ b/.github/kind-cluster-1.19.yaml
@@ -2,12 +2,12 @@ kind: Cluster
 apiVersion: kind.x-k8s.io/v1alpha4
 nodes:
 - role: control-plane
-  image: kindest/node:v1.19.4
+  image: kindest/node:v1.19.7
 - role: control-plane
-  image: kindest/node:v1.19.4
+  image: kindest/node:v1.19.7
 - role: control-plane
-  image: kindest/node:v1.19.4
+  image: kindest/node:v1.19.7
 - role: worker
-  image: kindest/node:v1.19.4
+  image: kindest/node:v1.19.7
 - role: worker
-  image: kindest/node:v1.19.4
+  image: kindest/node:v1.19.7
diff --git a/.github/kind-cluster-1.20.yaml b/.github/kind-cluster-1.20.yaml
index fb9dd28..cf06c7f 100644
--- a/.github/kind-cluster-1.20.yaml
+++ b/.github/kind-cluster-1.20.yaml
@@ -2,12 +2,12 @@ kind: Cluster
 apiVersion: kind.x-k8s.io/v1alpha4
 nodes:
 - role: control-plane
-  image: "kindest/node:v1.20.0"
+  image: "kindest/node:v1.20.2"
 - role: control-plane
-  image: "kindest/node:v1.20.0"
+  image: "kindest/node:v1.20.2"
 - role: control-plane
-  image: "kindest/node:v1.20.0"
+  image: "kindest/node:v1.20.2"
 - role: worker
-  image: "kindest/node:v1.20.0"
+  image: "kindest/node:v1.20.2"
 - role: worker
-  image: "kindest/node:v1.20.0"
+  image: "kindest/node:v1.20.2"
diff --git a/.github/kind-cluster-1.18.yaml b/.github/kind-cluster-1.21.yaml
similarity index 50%
rename from .github/kind-cluster-1.18.yaml
rename to .github/kind-cluster-1.21.yaml
index 699f25a..c957bb7 100644
--- a/.github/kind-cluster-1.18.yaml
+++ b/.github/kind-cluster-1.21.yaml
@@ -2,12 +2,12 @@ kind: Cluster
 apiVersion: kind.x-k8s.io/v1alpha4
 nodes:
 - role: control-plane
-  image: kindest/node:v1.18.8
+  image: kindest/node:v1.21.1
 - role: control-plane
-  image: kindest/node:v1.18.8
+  image: kindest/node:v1.21.1
 - role: control-plane
-  image: kindest/node:v1.18.8
+  image: kindest/node:v1.21.1
 - role: worker
-  image: kindest/node:v1.18.8
+  image: kindest/node:v1.21.1
 - role: worker
-  image: kindest/node:v1.18.8
+  image: kindest/node:v1.21.1
diff --git a/.github/workflows/on-pr-charts.yaml b/.github/workflows/on-pr-charts.yaml
index 011bbe7..c9a742b 100644
--- a/.github/workflows/on-pr-charts.yaml
+++ b/.github/workflows/on-pr-charts.yaml
@@ -36,6 +36,8 @@ jobs:
 
       - name: Create default kind cluster
         uses: helm/kind-action@v1.1.0
+        with:
+          version: v0.11.0
         if: ${{ matrix.test-action == 'install' }}
 
       - name: Run chart tests
@@ -52,6 +54,8 @@ jobs:
       # Default name for helm/kind-action kind clusters is "chart-testing"
       - name: Create 1 node kind cluster
         uses: helm/kind-action@v1.1.0
+        with:
+          version: v0.11.0
 
       - name: Deploy kured on default namespace with its helm chart
         run: |
diff --git a/.github/workflows/on-pr.yaml b/.github/workflows/on-pr.yaml
index 1c9c8bb..a901a30 100644
--- a/.github/workflows/on-pr.yaml
+++ b/.github/workflows/on-pr.yaml
@@ -97,9 +97,9 @@ jobs:
       fail-fast: false
       matrix:
         kubernetes:
-          - "1.18"
           - "1.19"
           - "1.20"
+          - "1.21"
     steps:
       - uses: actions/checkout@v2
       - name: Find go version
@@ -130,6 +130,7 @@ jobs:
         uses: helm/kind-action@v1.1.0
         with:
           config: .github/kind-cluster-${{ matrix.kubernetes }}.yaml
+          version: v0.11.0
 
       - name: Preload previously built images onto kind cluster
         run: kind load docker-image docker.io/${{ github.repository_owner }}/kured:${{ github.sha }} --name chart-testing
@@ -169,7 +170,7 @@ jobs:
       fail-fast: false
       matrix:
         kubernetes:
-          - "1.20"
+          - "1.21"
     steps:
       - uses: actions/checkout@v2
       - name: Find go version
@@ -198,6 +199,8 @@ jobs:
       # Default name for helm/kind-action kind clusters is "chart-testing"
       - name: Create 1 node kind cluster
         uses: helm/kind-action@v1.1.0
+        with:
+          version: v0.11.0
 
       - name: Preload previously built images onto kind cluster
         run: kind load docker-image docker.io/${{ github.repository_owner }}/kured:${{ github.sha }} --name chart-testing
diff --git a/.github/workflows/periodics-daily.yaml b/.github/workflows/periodics-daily.yaml
index 6e5daa1..3636d2f 100644
--- a/.github/workflows/periodics-daily.yaml
+++ b/.github/workflows/periodics-daily.yaml
@@ -74,9 +74,9 @@ jobs:
     strategy:
       matrix:
         kubernetes:
-          - "1.18"
           - "1.19"
           - "1.20"
+          - "1.21"
     steps:
       - uses: actions/checkout@v2
       - name: Find go version
@@ -103,6 +103,7 @@ jobs:
         uses: helm/kind-action@v1.1.0
         with:
           config: .github/kind-cluster-${{ matrix.kubernetes }}.yaml
+          version: v0.11.0
 
       - name: Deploy kured on default namespace with its helm chart
         run: |
@@ -132,4 +133,4 @@ jobs:
         env:
           DEBUG: true
         run: |
-          ./tests/kind/follow-coordinated-reboot.sh
\ No newline at end of file
+          ./tests/kind/follow-coordinated-reboot.sh