diff --git a/.env.default b/.env.default
index 14e6e67..8d4246c 100644
--- a/.env.default
+++ b/.env.default
@@ -43,4 +43,4 @@ SITE_AUDIT_VERSION=7.x-3.x
 
 # Set the Lagoon tag to use for the upstream dockerfiles (e.g. 20.12.0)
 # See https://hub.docker.com/r/uselagoon/php/tags
-LAGOON_IMAGE_VERSION=21.4.0
+LAGOON_IMAGE_VERSION=21.6.0