diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 294da9b..18e45d2 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -15,11 +15,7 @@ jobs:
             pandoc
           )
           sudo apt-get install --no-install-recommends ${PACKAGES[@]}
-      - name: Set up Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: 3.9
-      - name: Double-check Python version
+      - name: Check Python version
         run: |
           python --version
       - name: Install docs dependencies
@@ -30,7 +26,7 @@ jobs:
           python -m sphinx -W --keep-going --color -d _build/doctrees/ doc/ _build/html/ -b html
       - name: Check links
         run: |
-          python -m sphinx -W --keep-going --color -d _build/doctrees/ doc/ _build/linkcheck/ -b linkcheck
+          python -m sphinx -W --keep-going --color -d _build/doctrees/ doc/ _build/linkcheck/ -b linkcheck -q
       - name: Upload linkcheck results
         uses: actions/upload-artifact@v4
         if: ${{ success() || failure() }}
diff --git a/.readthedocs.yml b/.readthedocs.yml
index 81e650c..35bde69 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -9,5 +9,7 @@ build:
 python:
   install:
     - requirements: doc/requirements.txt
+sphinx:
+  configuration: doc/conf.py
 formats:
   - pdf
diff --git a/doc/rotation-matrices.ipynb b/doc/rotation-matrices.ipynb
index 7f64138..093f294 100644
--- a/doc/rotation-matrices.ipynb
+++ b/doc/rotation-matrices.ipynb
@@ -47,8 +47,8 @@
     "  and which axes they rotate around:\n",
     "  The ASDF conventions are shown in detail below.\n",
     "\n",
-    "* [\"intrinsic\"](https://en.wikipedia.org/wiki/Euler_angles#Conventions_by_intrinsic_rotations)\n",
-    "  vs. [\"extrinsic\"](https://en.wikipedia.org/wiki/Euler_angles#Conventions_by_extrinsic_rotations)\n",
+    "* [\"intrinsic\"](https://en.wikipedia.org/wiki/Euler_angles#Definition_by_intrinsic_rotations)\n",
+    "  vs. [\"extrinsic\"](https://en.wikipedia.org/wiki/Euler_angles#Definition_by_extrinsic_rotations)\n",
     "  = \"local\" vs. \"global\" reference system:\n",
     "  This sounds complicated, but it's really just about the order of transformations.\n",
     "  See below for details.\n",