diff --git a/.github/workflows/build-test-publish.yml b/.github/workflows/build-test-publish.yml
index d6fcac118c..d067da3267 100644
--- a/.github/workflows/build-test-publish.yml
+++ b/.github/workflows/build-test-publish.yml
@@ -129,7 +129,7 @@ jobs:
         auto-update-conda: true
         auto-activate-base: true
         python-version: ${{ matrix.python-version }}
-        channels: https://fsl.fmrib.ox.ac.uk/fsldownloads/fslconda/public/,conda-forge
+        channels: https://fsl.fmrib.ox.ac.uk/fsldownloads/fslconda/public/,conda-forge,defaults
     - uses: actions/cache@v4
       id: conda
       env: