diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3e32f1f..0e521a6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ on: [push, pull_request]
 
 jobs:
   test:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
 
     strategy:
       fail-fast: false
@@ -75,7 +75,7 @@ jobs:
         run: bundle exec appraisal rspec
 
   rubocop:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
 
     strategy:
       fail-fast: false