diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bbda379..ad6030f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     env:
       MIX_ENV: test
     strategy: