diff --git a/conda/conda-pack.txt b/conda/conda-pack.txt
index 82729ec..3017be6 100644
--- a/conda/conda-pack.txt
+++ b/conda/conda-pack.txt
@@ -5,6 +5,7 @@ camb
 cmake
 compilers
 corner
+cudatoolkit==11.7
 dask
 dask-mpi
 dask-jobqueue