diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a33c492..522a70b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -4,7 +4,7 @@ jobs:
 
   build:
     name: Build
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         singularity_version:
diff --git a/.github/workflows/pretty.yml b/.github/workflows/pretty.yml
index be689d4..94aafc9 100644
--- a/.github/workflows/pretty.yml
+++ b/.github/workflows/pretty.yml
@@ -3,11 +3,11 @@ on: [push, pull_request]
 jobs:
   build:
     name: Build
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     steps:
     - name: Check out code
       uses: actions/checkout@v2
-      
+
     - name: Install useful utilities
       run: sudo apt-get install -y tree