diff --git a/.github/workflows/zephyr.yml b/.github/workflows/zephyr.yml
index b13fa3676c15..89d6af0db769 100644
--- a/.github/workflows/zephyr.yml
+++ b/.github/workflows/zephyr.yml
@@ -37,7 +37,7 @@ jobs:
           pip3 install west
           cd workspace/sof/
           west init -l
-          west update
+          west update --fetch-opt=--filter=tree:0
 
   build-linux:
     runs-on: ubuntu-20.04