diff --git a/.circleci/config.yml b/.circleci/config.yml
index 04771669ff0..c72affb4920 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -59,7 +59,7 @@ jobs:
             . venv/bin/activate
             cd doc
             # Don't use -q, show warning summary"
-            SPHINXOPTS="-n" make -e html || echo "ignoring errors for now, see gh-13114"
+            SPHINXOPTS="-j4 -n" make -e html || echo "ignoring errors for now, see gh-13114"
 
       - run:
           name: build devdocs
@@ -68,14 +68,14 @@ jobs:
             . venv/bin/activate
             cd doc
             make clean
-            SPHINXOPTS=-q make -e html
+            SPHINXOPTS="-j4 -q" make -e html
 
       - run:
           name: build neps
           command: |
             . venv/bin/activate
             cd doc/neps
-            SPHINXOPTS=-q make -e html
+            SPHINXOPTS="-j4 -q" make -e html
 
       - store_artifacts:
           path: doc/build/html/