diff --git a/cluster.yml b/cluster.yml
index bedb5d5..cf7148a 100644
--- a/cluster.yml
+++ b/cluster.yml
@@ -1,12 +1,12 @@
 nodes:
   - name: node1
-    program: ./programs/noop.hal
+    program: ./programs/prak3.hal
   - name: node2
-    program: ./programs/noop.hal
+    program: ./programs/prak3.hal
   - name: node3
-    program: ./programs/noop.hal
+    program: ./programs/prak3.hal
   - name: node4
-    program: ./programs/noop.hal
+    program: ./programs/prak3.hal
 connections:
   - source_node: node1
     source_port: 3