diff --git a/README.md b/README.md
index 9f97771695..c83a7a9005 100644
--- a/README.md
+++ b/README.md
@@ -81,11 +81,12 @@ Kubernetes version.
 
 #### Compatibility Matrix
 
-| kops version | k8s 1.5.x | k8s 1.6.x | k8s 1.7.x | k8s 1.8.x |
-|--------------|-----------|-----------|-----------|-----------|
-| 1.8.x        | Y         | Y         | Y         | Y         |
-| 1.7.x        | Y         | Y         | Y         | N         |
-| 1.6.x        | Y         | Y         | N         | N         |
+| kops version | k8s 1.5.x | k8s 1.6.x | k8s 1.7.x | k8s 1.8.x | k8s 1.9.x |
+|--------------|-----------|-----------|-----------|-----------|-----------|
+| 1.9.x (unreleased)       | Y         | Y         | Y         | Y         | Y         |
+| 1.8.x        | Y         | Y         | Y         | Y         | N         |
+| 1.7.x        | Y         | Y         | Y         | N         | N         |
+| 1.6.x        | Y         | Y         | N         | N         | N         |
 
 Use the latest version of kops for all releases of Kubernetes, with the caveat
 that higher versions of Kubernetes are not _officially_ supported by kops.