diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7de85e14..812bce6e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -89,10 +89,25 @@ jobs:
             - name: Start PostgreSQL
               if: matrix.adapter == 'postgres'
               run: |
-                  sudo systemctl start postgresql.service
-                  pg_isready
-                  sudo -u postgres createuser -s -d -r -w ${{ vars.POSTGRES_USER }}
-              
+                    # initdb requires file for password in non-interactive mode
+                    export PWFILE="$RUNNER_TEMP/pwfile"
+                    echo "postgres" > $PWFILE
+                    initdb --pgdata="$PGDATA" --username="postgres" --pwfile="$PWFILE"
+
+                    echo "Starting PostgreSQL..."
+                    echo "unix_socket_directories = '$PGHOST'" >> "$PGDATA/postgresql.conf"
+                    pg_ctl start
+
+                    echo "Creating user..."
+                    psql --host "$PGHOST" --username="postgres" --dbname="postgres" --command="CREATE USER $PGUSERNAME PASSWORD '$PGPASSWORD'" --command="\du"
+
+                    echo "Creating database..."
+                    createdb --owner="$PGUSERNAME" --username="postgres" "$PGDATABASE"
+              env:
+                PGHOST: ${{ vars.POSTGRES_HOST }}
+                PGDATABASE: ${{ vars.POSTGRES_DATABASE }}
+                PGUSERNAME: ${{ vars.POSTGRES_USER }}
+                PGPASSWORD: ${{ secrets.POSTGRES_PASS }}
 
             - name: "Install ${{ matrix.adapter }}"
               run: |
diff --git a/integration_tests/.env/bigquery.env b/integration_tests/.env/bigquery.env
index 6cc1a9b4..932cd313 100644
--- a/integration_tests/.env/bigquery.env
+++ b/integration_tests/.env/bigquery.env
@@ -1,3 +1,3 @@
 DBT_ENV_SECRET_BIGQUERY_KEYFILE_JSON=
-BIGQUERY_PROJECTs=
+BIGQUERY_PROJECT=
 BIGQUERY_SCHEMA=dbt_utils_integration_tests_bigquery
\ No newline at end of file
diff --git a/supported_adapters.env b/supported_adapters.env
index 3acc8a8b..7e734380 100755
--- a/supported_adapters.env
+++ b/supported_adapters.env
@@ -1 +1 @@
-SUPPORTED_ADAPTERS=postgres,snowflake,redshift,bigquery
+SUPPORTED_ADAPTERS=postgres,snowflake,redshift