diff --git a/Earthfile b/Earthfile
index a93ae71..259b665 100644
--- a/Earthfile
+++ b/Earthfile
@@ -1,8 +1,7 @@
 VERSION 0.8
 
-IMPORT github.com/formancehq/earthly:tags/v0.16.2 AS core
-
-
+ARG core=github.com/formancehq/earthly:tags/v0.16.2
+IMPORT $core AS core
 
 FROM core+base-image