diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 614fb74..6a9bc7a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,13 +9,13 @@ on:
 jobs:
   format:
     name: Code linting
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
 
     steps:
       - uses: actions/checkout@v2
 
       - name: Set up Elixir environment
-        uses: erlef/setup-elixir@v1
+        uses: erlef/setup-beam@v1
         with:
           otp-version: 23
           elixir-version: 1.11
@@ -31,7 +31,7 @@ jobs:
 
   test:
     name: Test suite
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
 
     strategy:
       matrix:
@@ -48,7 +48,7 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Set up Elixir environment
-        uses: erlef/setup-elixir@v1
+        uses: erlef/setup-beam@v1
         with:
           elixir-version: ${{ matrix.versions.elixir }}
           otp-version: ${{ matrix.versions.otp }}