diff --git a/docs/user-guide/private-repositories.md b/docs/user-guide/private-repositories.md
index 437b28c6f4..d41b37af0f 100644
--- a/docs/user-guide/private-repositories.md
+++ b/docs/user-guide/private-repositories.md
@@ -346,6 +346,8 @@ argocd repo add git@github.com:argoproj/argocd-example-apps.git --ssh-private-ke
 
 ## Git Submodules
 
+> v1.4 or later
+
 Submodules are supported and will be picked up automatically. If the submodule repository requires authentication then the credentials will need to match the credentials of the parent repository. Set ARGOCD_GIT_MODULES_ENABLED=false to disable submodule support
 
 ## Declarative Configuration