diff --git a/tox.ini b/tox.ini
index 6cd11b40..4de43840 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,8 +26,6 @@ passenv =
     DISPLAY XAUTHORITY
     NUMPY_EXPERIMENTAL_ARRAY_FUNCTION
     PYVISTA_OFF_SCREEN
-    CONDA_EXE
-    CONDA
 extras = gui
 conda_deps =
     pytest
@@ -44,9 +42,3 @@ commands =
     linux: apt-get update && apt-get install libgl1
     pytest -v --color=yes --cov=cellpose --cov-report=xml --ignore=tests/contrib
     
-[testenv:gpu]
-conda_deps = 
-    pytest
-    pytorch
-    linux,windows: cudatoolkit=11.3
-