diff --git a/.env b/.env
index b93f912..2d7e3da 100644
--- a/.env
+++ b/.env
@@ -30,7 +30,7 @@ CONSISTENCY=delegated
 ISLANDORA_REPOSITORY=islandora
 
 # The version of the isle-buildkit images to use.
-ISLANDORA_TAG=3.2.10
+ISLANDORA_TAG=main
 
 # The Docker image repository, to push/pull custom images from.
 # islandora.io redirects to localhost.