diff --git a/src/rebar_prv_lock.erl b/src/rebar_prv_lock.erl
index 03cf36ca..a3e4a999 100644
--- a/src/rebar_prv_lock.erl
+++ b/src/rebar_prv_lock.erl
@@ -40,6 +40,8 @@ do(State) ->
 
             OldLockNames = [element(1,L) || L <- OldLocks],
             NewLockNames = [element(1,L) || L <- Locks],
+
+            %% TODO: don't output this message if the dep is now a checkout
             rebar_utils:info_useless(OldLockNames, NewLockNames),
 
             {ok, State1};
diff --git a/src/rebar_prv_upgrade.erl b/src/rebar_prv_upgrade.erl
index 565f342c..e827f735 100644
--- a/src/rebar_prv_upgrade.erl
+++ b/src/rebar_prv_upgrade.erl
@@ -217,6 +217,7 @@ prepare_locks([Name|Names], Deps, Locks, Unlocks, Dict, AltDeps) ->
         false ->
             case rebar_utils:tup_find(AtomName, AltDeps) of
                 false ->
+                    %% TODO: output a different error if the app is a checkout
                     ?PRV_ERROR({unknown_dependency, Name});
                 _ -> % non-default profile dependency found, pass through
                     prepare_locks(Names, Deps, Locks, Unlocks, Dict, AltDeps)