diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index a7da66e..b48b344 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -107,12 +107,14 @@ jobs:
 
       - name: Create PLTs
         run: |
+          apt-get install erlang-dialyzer
           mkdir -p priv/plts
           mix dialyzer --plt
         if: ${{ matrix.lint }}
 
       - name: Check quality
         run: |
+          apt-get install erlang-dialyzer
           mix format --check-formatted
           mix credo --strict
           mix dialyzer --no-check