diff --git a/api/project.py b/api/project.py
index f283c85..0853e1c 100644
--- a/api/project.py
+++ b/api/project.py
@@ -4,13 +4,13 @@ from .connection import g_conn_dict as conn
 # no undo/redo
 
 def have_project(name: str) -> bool:
-    with pg.connect(conninfo="dbname=postgres", autocommit=True) as conn:
+    with pg.connect(conninfo="dbname=postgres host=127.0.0.1", autocommit=True) as conn:
         with conn.cursor() as cur:
             cur.execute(f"select * from pg_database where datname = '{name}'")
             return cur.rowcount > 0
 
 def copy_project(source: str, new: str) -> None:
-    with pg.connect(conninfo="dbname=postgres", autocommit=True) as conn:
+    with pg.connect(conninfo="dbname=postgres host=127.0.0.1", autocommit=True) as conn:
         with conn.cursor() as cur:
             cur.execute(f"create database {new} with template = {source}")
 
@@ -18,12 +18,12 @@ def create_project(name: str) -> None:
     return copy_project('project', name)
 
 def delete_project(name: str) -> None:
-    with pg.connect(conninfo="dbname=postgres", autocommit=True) as conn:
+    with pg.connect(conninfo="dbname=postgres host=127.0.0.1", autocommit=True) as conn:
         with conn.cursor() as cur:
             cur.execute(f"drop database {name}")
 
 def open_project(name: str) -> None:
-    conn[name] = pg.connect(conninfo=f"dbname={name}", autocommit=True)
+    conn[name] = pg.connect(conninfo=f"dbname={name} host=127.0.0.1", autocommit=True)
 
 def is_project_open(name: str) -> bool:
     return name in conn
diff --git a/script/template.py b/script/template.py
index c219802..e6e34a8 100644
--- a/script/template.py
+++ b/script/template.py
@@ -67,10 +67,10 @@ sql_drop = [
 ]
 
 def create_template():
-    with pg.connect(conninfo="dbname=postgres", autocommit=True) as conn:
+    with pg.connect(conninfo="dbname=postgres host=127.0.0.1", autocommit=True) as conn:
         with conn.cursor() as cur:
             cur.execute("create database project")
-    with pg.connect(conninfo="dbname=project") as conn:
+    with pg.connect(conninfo="dbname=project host=127.0.0.1") as conn:
         with conn.cursor() as cur:
             for sql in sql_create:
                 with open(sql, "r") as f:
@@ -79,20 +79,20 @@ def create_template():
         conn.commit()
 
 def have_template():
-    with pg.connect(conninfo="dbname=postgres", autocommit=True) as conn:
+    with pg.connect(conninfo="dbname=postgres host=127.0.0.1", autocommit=True) as conn:
         with conn.cursor() as cur:
             cur.execute("select * from pg_database where datname = 'project'")
             return cur.rowcount > 0
 
 def delete_template():
-    with pg.connect(conninfo="dbname=project") as conn:
+    with pg.connect(conninfo="dbname=project host=127.0.0.1") as conn:
         with conn.cursor() as cur:
             for sql in sql_drop:
                 with open(sql, "r") as f:
                     cur.execute(f.read())
                 print(f'executed {sql}')
         conn.commit()
-    with pg.connect(conninfo="dbname=postgres", autocommit=True) as conn:
+    with pg.connect(conninfo="dbname=postgres host=127.0.0.1", autocommit=True) as conn:
         with conn.cursor() as cur:
             cur.execute("drop database project")