diff --git a/.github/workflows/elixir_matrix.yaml b/.github/workflows/elixir_matrix.yaml
index cd2f096..1034e62 100644
--- a/.github/workflows/elixir_matrix.yaml
+++ b/.github/workflows/elixir_matrix.yaml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     name: Test - OTP ${{matrix.otp}} / Elixir ${{matrix.elixir}}
     strategy:
       # see https://hexdocs.pm/elixir/compatibility-and-deprecations.html#compatibility-between-elixir-and-erlang-otp