diff --git a/pyproject.toml b/pyproject.toml
index a06e553..0a24f6c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -97,7 +97,7 @@ legacy_tox_ini = """
     commands =
         sphinx-build \
             --keep-going \
-            -T \
+            -TW \
             -b html \
             docs/ docs/_build/html
     description =
@@ -127,7 +127,7 @@ legacy_tox_ini = """
     commands =
         sphinx-build \
             --keep-going \
-            -T \
+            -TW \
             -b html \
             docs/ docs/_build/html
     description =
@@ -141,7 +141,7 @@ legacy_tox_ini = """
     allowlist_externals =
         sphinx-build
     commands =
-        sphinx-build -n --keep-going -b html docs/ docs/_build/html
+        sphinx-build -nW --keep-going -b html docs/ docs/_build/html
     description =
         Execute ALL Jupyter notebooks and build documentation with Sphinx
     passenv = *