diff --git a/.github/workflows/build_jlext.yml b/.github/workflows/build_jlext.yml
index 32b04db..15e5e15 100644
--- a/.github/workflows/build_jlext.yml
+++ b/.github/workflows/build_jlext.yml
@@ -32,7 +32,7 @@ jobs:
           
       - name: Set Yarn version
         run: |
-          yarn set version stable
+          yarn set version 3.5.0
 
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1