diff --git a/.circleci/config.yml b/.circleci/config.yml
index df026af33..06a151528 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -25,6 +25,7 @@ commands:
     steps:
       - run:
           name: "Install dependencies."
+          no_output_timeout: 30m
           command: |
             source $BASH_ENV
             sudo apt-get update
@@ -40,7 +41,7 @@ commands:
             git clone https://github.com/yt-project/yt
             cd yt
             git checkout main
-            pip install -e .
+            MAX_JOBS=1 pip install --no-build-isolation -v .
             cd ..
             pip install yt_astro_analysis
             # Install hypre