diff --git a/tox.ini b/tox.ini
index be7d3f4..a758992 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,10 +12,10 @@ deps =
     pytest
     numpy
     scipy
-    copt==0.8.4
+    copt>=0.9.1
     scikit-learn>=1.0.0
     scikit-optimize
     tqdm
     fda: scikit-fda
-    fda: numba==0.53
+    fda: numba>=0.53
 commands = pytest --pyargs groupyr --cov-report term-missing --cov-config .coveragerc --cov=groupyr -n 1 {posargs}