diff --git a/conda-recipe/meta.yaml b/conda-recipe/meta.yaml
index 49235032a0..c7a543bec6 100644
--- a/conda-recipe/meta.yaml
+++ b/conda-recipe/meta.yaml
@@ -55,6 +55,7 @@ requirements:
         - pineappl >=0.6.2
         - eko >=0.14.0
         - fiatlux
+        - curio >=1.0 # reportengine uses it but it's not in its dependencies 
 
 test:
     requires: