diff --git a/helpers/matrix.yml b/helpers/matrix.yml
index 4998f6541..4398a736b 100644
--- a/helpers/matrix.yml
+++ b/helpers/matrix.yml
@@ -38,6 +38,6 @@ APM_SERVER_SUITE:
   - security
   - upgrade
 KUBERNETES_VERSION:
-  - "1.18"
   - "1.19"
   - "1.20"
+  - "1.21"