diff --git a/requirements.txt b/requirements.txt
index d9e8f537..15bdcfa1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,12 @@
 astropy
-astroquery
+astroquery>=0.4.8.dev9474  # 2024-09-24 pinned for Gaia column capitalization issue
 IPython
 matplotlib
 numpy
 jupyter
 scipy
 notebook
-spectral-cube @ git+https://github.com/radio-astro-tools/spectral-cube  # as of: 2021-09-21
+spectral-cube
 radio-beam
 reproject
 dust_extinction
diff --git a/tutorials/color-excess/color-excess.ipynb b/tutorials/color-excess/color-excess.ipynb
index 4380d2e5..14ca96cc 100644
--- a/tutorials/color-excess/color-excess.ipynb
+++ b/tutorials/color-excess/color-excess.ipynb
@@ -201,7 +201,7 @@
    "outputs": [],
    "source": [
     "download_dir = pathlib.Path('~/.astropy/cache/astroquery/Mast').expanduser()\n",
-    "download_dir.mkdir(exist_ok=True)\n",
+    "download_dir.mkdir(exist_ok=True, parents=True)\n",
     "\n",
     "obsTable = Observations.query_object(\"HD 147933\", radius=\"1 arcsec\")\n",
     "obsTable_spec = obsTable[obsTable['dataproduct_type'] == 'spectrum']\n",