diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index dd35b6eb..39234d93 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -5,6 +5,14 @@ on:
     tags:
       - 'v*'
 
+concurrency:
+  group: 'github-pages'
+  cancel-in-progress: true
+
+env:
+  NUMBA_NUM_THREADS: 1
+  MPLBACKEND: Agg
+
 jobs:
 
   docs: