diff --git a/engine b/engine
index eaf55a8..60bc114 160000
--- a/engine
+++ b/engine
@@ -1 +1 @@
-Subproject commit eaf55a864c58ac27bdaf9251603131e5c9d0dab4
+Subproject commit 60bc114e391dea7a3e0525b73182b6ece5921de6
diff --git a/mods/example/mod.yaml b/mods/example/mod.yaml
index 70db24d..7ed4f9f 100644
--- a/mods/example/mod.yaml
+++ b/mods/example/mod.yaml
@@ -1,10 +1,6 @@
 Metadata:
 	Title: Example mod
-	Description: Illustrates the mod development scripts
 	Version: {DEV_VERSION}
-	Author: the OpenRA Developers
-
-RequiresMods:
 
 Packages:
 	.
diff --git a/mods/example/rules.yaml b/mods/example/rules.yaml
index 2bdb574..8134d4b 100644
--- a/mods/example/rules.yaml
+++ b/mods/example/rules.yaml
@@ -13,7 +13,6 @@ Player:
 	SupportPowerManager:
 	PowerManager:
 	PlayerResources:
-	ActorGroupProxy:
 	DeveloperMode:
 	Shroud:
 	FrozenActorLayer: