diff --git a/.github/workflows/build_site.yml b/.github/workflows/build_site.yml
index 6b18400a5..c319ddb81 100644
--- a/.github/workflows/build_site.yml
+++ b/.github/workflows/build_site.yml
@@ -26,7 +26,7 @@ jobs:
           run-install: false
 
       - name: Build website and manuscript
-        shell: pixi exec --spec jupyter-book ghp-import nbconvert -- bash -e {0}
+        shell: pixi exec --spec jupyter-book --spec ghp-import --spec nbconvert -- bash -e {0}
         run: |
           rm -f pipeline/*.ipynb
           python website/build_support.py --stage-widget
diff --git a/.github/workflows/dispatch_build_site.yml b/.github/workflows/dispatch_build_site.yml
index e932a899c..8f0da0d51 100644
--- a/.github/workflows/dispatch_build_site.yml
+++ b/.github/workflows/dispatch_build_site.yml
@@ -22,7 +22,7 @@ jobs:
           run-install: false
 
       - name: Build website and manuscript
-        shell: pixi exec --spec jupyter-book ghp-import nbconvert -- bash -e {0}
+        shell: pixi exec --spec jupyter-book --spec ghp-import --spec nbconvert -- bash -e {0}
         run: |
           rm -f pipeline/*.ipynb
           python website/build_support.py --stage-widget