diff --git a/bob/devtools/data/conda_build_config.yaml b/bob/devtools/data/conda_build_config.yaml
index 7f15c33763100bc620e08f5bf28e18529a80aba1..ec3acec0f5b9e2ffa836251e24e7399c5aed185f 100644
--- a/bob/devtools/data/conda_build_config.yaml
+++ b/bob/devtools/data/conda_build_config.yaml
@@ -259,6 +259,10 @@ pin_run_as_build:
     max_pin: x
   nspr:
     max_pin: x
+  numba:
+    max_pin: x.x
+  numpy:
+    max_pin: x.x
   occt:
     max_pin: x.x
   openturns: