diff --git a/README.md b/README.md
index ec85340..5eac110 100644
--- a/README.md
+++ b/README.md
@@ -16,9 +16,9 @@ Available variables are listed below, along with default values (see `defaults/m
 
 Varnish package name you want to install. See `apt-cache policy varnish` or `yum list varnish` for a listing of available candidates.
 
-    varnish_version: "6.4"
+    varnish_version: "6.6"
 
-Varnish version that should be installed. See the [Varnish Cache packagecloud.io repositories](https://packagecloud.io/varnishcache) for a listing of available versions. Some examples include: `6.4`, `6.3`, `6.1`, `4.1`, `3.0`, and `2.1`.
+Varnish version that should be installed. See the [Varnish Cache packagecloud.io repositories](https://packagecloud.io/varnishcache) for a listing of available versions. Some examples include: `6.6`, `6.5`, `6.4`, `4.1`, `3.0`, and `2.1`.
 
     varnish_config_path: /etc/varnish
 
diff --git a/defaults/main.yml b/defaults/main.yml
index 51e308e..cc22f3a 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,7 +1,7 @@
 ---
 varnish_package_name: "varnish"
 varnish_modules_package_name: ""
-varnish_version: "6.4"
+varnish_version: "6.6"
 
 varnish_use_default_vcl: true
 varnish_default_vcl_template_path: default.vcl.j2