diff --git a/README.md b/README.md
index 972b29d..2abc92a 100644
--- a/README.md
+++ b/README.md
@@ -665,7 +665,7 @@ on:
 
 jobs:
   deploy:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
 
     - uses: actions/checkout@v1