diff --git a/beat/web/experiments/models/block.py b/beat/web/experiments/models/block.py
index f7e4fd3e69a843b828bd6ae2cd368ecc2a06e8e1..38b48dbb4d66b89bd8e4cc074abffe1985ee8f13 100755
--- a/beat/web/experiments/models/block.py
+++ b/beat/web/experiments/models/block.py
@@ -138,6 +138,7 @@ class Block(models.Model):
             self.experiment.toolchain.version,
             self.experiment.name,
         )
+    natural_key.dependencies = ['experiments.experiment']
 
 
     def save(self, *args, **kwargs):