diff --git a/conda-recipe/meta.yaml b/conda-recipe/meta.yaml
index 07534b0..9ecbe12 100644
--- a/conda-recipe/meta.yaml
+++ b/conda-recipe/meta.yaml
@@ -20,8 +20,10 @@ build:
 
 requirements:
   build:
+    - epicscorelibs
     - python >=3.9
     - pip
+    - numpy
     - setuptools
     - setuptools_scm
   host: