diff --git a/.github/workflows/elixir_tests.yml b/.github/workflows/elixir_tests.yml
index 3a4e716..51a1d82 100644
--- a/.github/workflows/elixir_tests.yml
+++ b/.github/workflows/elixir_tests.yml
@@ -48,7 +48,7 @@ jobs:
           ./bin/test_all_exercises.sh
 
   smoke_test_in_docker:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
 
     steps:
       - name: Checkout repository
diff --git a/.github/workflows/exercism_test_helper_build_test.yml b/.github/workflows/exercism_test_helper_build_test.yml
index cfe34ef..6b615b1 100644
--- a/.github/workflows/exercism_test_helper_build_test.yml
+++ b/.github/workflows/exercism_test_helper_build_test.yml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
 
     container:
       image: hexpm/elixir:1.15.2-erlang-26.0.2-debian-bookworm-20230612