diff --git a/tox.ini b/tox.ini
index d9da4b63..e476fc6f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -49,6 +49,8 @@ commands =
     --show-traceback \
     docs/ docs/_build/html
 description = Build documentation and API through Sphinx
+setenv =
+  PYTHONWARNINGS =
 
 [testenv:doclive]
 allowlist_externals =
@@ -77,23 +79,25 @@ commands =
     --watch=src \
     docs/ docs/_build/html
 description = Set up a server to directly preview changes to the HTML pages
+setenv =
+  {[testenv:doc]setenv}
 
 [testenv:docnb]
 base = doc
 setenv =
-  {[testenv:doc]}setenv
+  {[testenv:doc]setenv}
   EXECUTE_NB = yes
 
 [testenv:docnb-force]
 base = doc
 setenv =
-  {[testenv:doc]}setenv
+  {[testenv:doc]setenv}
   FORCE_EXECUTE_NB = yes
 
 [testenv:docnblive]
 base = doclive
 setenv =
-  {[testenv:doclive]}setenv
+  {[testenv:doclive]setenv}
   EXECUTE_NB = yes
 
 [testenv:linkcheck]
@@ -105,6 +109,8 @@ commands =
     --show-traceback \
     docs/ docs/_build/linkcheck
 description = Check external links in the documentation (requires internet connection)
+setenv =
+  {[testenv:doclive]setenv}
 
 [testenv:nb]
 allowlist_externals =