diff --git a/.github/workflows/applications.yml b/.github/workflows/applications.yml
index b94defe..a1e4724 100644
--- a/.github/workflows/applications.yml
+++ b/.github/workflows/applications.yml
@@ -10,7 +10,7 @@ on:
 
 jobs:
   Test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         version: ['2.7', '3.7', '3.9']