diff --git a/conda-recipe/meta.yaml b/conda-recipe/meta.yaml
index 366598c9b9901e32c38c753fb112a8a67cc38a0f..98b84ad6fb69cc09faa83602f39dbb241c239a56 100644
--- a/conda-recipe/meta.yaml
+++ b/conda-recipe/meta.yaml
@@ -22,6 +22,8 @@ requirements:
     # specify without sub version and without == to get the latest sub version
     - python 3.10
     - numpy
+    # scipy 1.9.3 gave interpolate error "ValueError: Expect x to not have duplicates"
+    - scipy <1.9.3
     # TODO remove? not used ?!
     #- python-dateutil
     - matplotlib