diff --git a/.github/workflows/flakehub-cache.yml b/.github/workflows/flakehub-cache.yml
index 118fc4b..c7969de 100644
--- a/.github/workflows/flakehub-cache.yml
+++ b/.github/workflows/flakehub-cache.yml
@@ -21,8 +21,6 @@ jobs:
             runner: "macos-12"
           - nix-system: "x86_64-linux"
             runner: "ubuntu-22.04"
-        shells:
-          - default
     steps:
       - uses: actions/checkout@v3
       - uses: DeterminateSystems/nix-installer-action@main