diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 57fa983f..5dcce43f 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -7,7 +7,7 @@ on:
 
 env:
   MB__BATCH_SIZE: 10_000
-  MB__BACKEND_TYPE: postgres
+  MB__BACKEND_TYPE: postgresql
   MB__DATASETS_CONFIG: datasets.toml
   # PostgreSQL backend settings
   MB__POSTGRES__HOST: localhost