diff --git a/CondaPkg.toml b/CondaPkg.toml
index f4cd0df..e493e3a 100644
--- a/CondaPkg.toml
+++ b/CondaPkg.toml
@@ -1,6 +1,7 @@
+[deps]
+numpy = "<2"
+scipy = ""
 
 [pip.deps]
 pymatching = ""
 ldpc = ""
-numpy = "<=1.26"
-scipy = ""