diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index 10bf729..c67db8d 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -34,6 +34,7 @@ jobs:
       postgres:
         image: postgres:latest
         env:
+          POSTGRES_HOST: postgres
           POSTGRES_USER: admin
           POSTGRES_PASSWORD: ephermeral_exists_during_tests
           POSTGRES_DB: blackpearl