diff --git a/docker/aeternity_node_mean16.yaml b/docker/aeternity_node_mean16.yaml
index 30160fcee7..99002e4519 100644
--- a/docker/aeternity_node_mean16.yaml
+++ b/docker/aeternity_node_mean16.yaml
@@ -19,7 +19,7 @@ chain:
   persist: false
   hard_forks:
     "1": 0
-    "6": 1
+    "5": 1
 
 mining:
   autostart: true