diff --git a/conda/meta.yaml b/conda/meta.yaml
index 44a876cd6..e96594ab5 100644
--- a/conda/meta.yaml
+++ b/conda/meta.yaml
@@ -23,7 +23,7 @@ requirements:
     - recommonmark
   run:
     - python >=3.8
-    - numpy >=1.20.0
+    - numpy >=1.20.0,<2.0.0
     - orange3 >=3.34.0
     - orange-canvas-core >=0.1.28
     - orange-widget-base >=4.19.0
@@ -38,7 +38,7 @@ requirements:
     - extranormal3 >=0.0.3
     - renishawWiRE >=0.1.8
     - pillow
-    - lmfit >=1.0.2
+    - lmfit >=1.0.2,<1.3.0
     - bottleneck
     - pebble
     - agilent-format>=0.4.5