diff --git a/conda/meta.yaml b/conda/meta.yaml
index b57a64bf820c7063b05ec0e351eb3576c77c9000..034b94053562454ffa99354c9b8a42500e18900f 100644
--- a/conda/meta.yaml
+++ b/conda/meta.yaml
@@ -38,7 +38,7 @@ requirements:
     - docopt {{ docopt }}
     - matplotlib {{ matplotlib }}
     - h5py {{ h5py }}
-    - cudatoolkit {{ cudatoolkit }}  # [linux]
+    - cudatoolkit==9.0  # [linux]
     - tensorflow {{ tensorflow }}
     - pytorch {{ pytorch }}  # [linux]
     - torchvision {{ torchvision }}  # [linux]