1 files changed, 2 insertions, 2 deletions

diff --git a/tox.ini b/tox.ini
index e3349e5a5..b9b1dccfb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,10 +6,10 @@ skipsdist = true
 [testenv:docs]
 deps = -r{toxinidir}/etc/requirements.txt
 commands =
-    sphinx-build -b html -n -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/html
+    sphinx-build -j 4 -b html -n -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/html
     echo "Generated docs available in {toxinidir}/docs/_build/html"
 whitelist_externals = echo
 
 [testenv:docs-linkcheck]
 deps = -r{toxinidir}/etc/requirements.txt
-commands = sphinx-build -b linkcheck -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/linkcheck
+commands = sphinx-build -j 4 -b linkcheck -d {envtmpdir}/doctrees ./docs/ {toxinidir}/docs/_build/linkcheck