diff --git a/pyproject.toml b/pyproject.toml
index 7abfa13..0dd90b0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
     "torch-geometric==2.4",
     "einops==0.6.1",
     "hydra-core==1.3",
-    "anemoi-utils==0.1.9",
+    "anemoi-utils>=0.1.9",
 ]
 
 [project.optional-dependencies]