diff --git a/charts/spire/Chart.yaml b/charts/spire/Chart.yaml
index 0cddbf1..44eb7d1 100644
--- a/charts/spire/Chart.yaml
+++ b/charts/spire/Chart.yaml
@@ -37,4 +37,4 @@ maintainers:
   - name: marcofranssen
     email: marco.franssen@gmail.com
     url: https://marcofranssen.nl
-kubeVersion: ">=1.19.0-0"
+kubeVersion: ">=1.21.0-0"
diff --git a/charts/spire/README.md b/charts/spire/README.md
index 03df42d..89fc6ca 100644
--- a/charts/spire/README.md
+++ b/charts/spire/README.md
@@ -42,7 +42,7 @@ spec:
 
 ## Requirements
 
-Kubernetes: `>=1.19.0-0`
+Kubernetes: `>=1.21.0-0`
 
 ## Values