diff --git a/.github/workflows/sdk-test.yml b/.github/workflows/sdk-test.yml
index 6a5f3db..33f7690 100644
--- a/.github/workflows/sdk-test.yml
+++ b/.github/workflows/sdk-test.yml
@@ -15,7 +15,7 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix: