diff --git a/docs/docs/core/initialization.mdx b/docs/docs/core/initialization.mdx
index 0c9e54c15..2ea51c648 100644
--- a/docs/docs/core/initialization.mdx
+++ b/docs/docs/core/initialization.mdx
@@ -49,7 +49,7 @@ This takes care of the following effects:
 
 The following environment variables are supported:
 
-*   `COCOINDEX_DATABASE_URL` (required): The URI of the Postgres database to use as the internal storage, e.g. `postgres://cocoindex:cocoindex@localhost/cocoindex`
+*   `COCOINDEX_DATABASE_URL` (required): The URL of the Postgres database to use as the internal storage, e.g. `postgres://cocoindex:cocoindex@localhost/cocoindex`
 *   `COCOINDEX_DATABASE_USER` (optional): The username for the Postgres database. If not provided, username will come from `COCOINDEX_DATABASE_URL`.
 *   `COCOINDEX_DATABASE_PASSWORD` (optional): The password for the Postgres database. If not provided, password will come from `COCOINDEX_DATABASE_URL`.
 
@@ -66,9 +66,9 @@ It takes a `Settings` object as argument, which is a dataclass that contains the
 #### DatabaseConnectionSpec
 
 `DatabaseConnectionSpec` has the following fields:
-*   `uri` (type: `str`, required): The URI of the Postgres database to use as the internal storage, e.g. `postgres://cocoindex:cocoindex@localhost/cocoindex`.
-*   `user` (type: `str`, optional): The username for the Postgres database. If not provided, username will come from `uri`.
-*   `password` (type: `str`, optional): The password for the Postgres database. If not provided, password will come from `uri`.
+*   `url` (type: `str`, required): The URL of the Postgres database to use as the internal storage, e.g. `postgres://cocoindex:cocoindex@localhost/cocoindex`.
+*   `user` (type: `str`, optional): The username for the Postgres database. If not provided, username will come from `url`.
+*   `password` (type: `str`, optional): The password for the Postgres database. If not provided, password will come from `url`.
 
 ### Example
 
@@ -83,7 +83,7 @@ def main():
   cocoindex.init(
       cocoindex.Settings(
           database=cocoindex.DatabaseConnectionSpec(
-              uri="postgres://cocoindex:cocoindex@localhost/cocoindex"
+              url="postgres://cocoindex:cocoindex@localhost/cocoindex"
   )))
   ...
 
diff --git a/docs/docs/ops/storages.md b/docs/docs/ops/storages.md
index fa88ba8ac..a6d5ac39b 100644
--- a/docs/docs/ops/storages.md
+++ b/docs/docs/ops/storages.md
@@ -379,7 +379,7 @@ Please read and agree the license before starting the instance.
 The `Neo4j` storage exports each row as a relationship to Neo4j Knowledge Graph. The spec takes the following fields:
 
 *   `connection` (type: [auth reference](../core/flow_def#auth-registry) to `Neo4jConnectionSpec`): The connection to the Neo4j database. `Neo4jConnectionSpec` has the following fields:
-    *   `uri` (type: `str`): The URI of the Neo4j database to use as the internal storage, e.g. `bolt://localhost:7687`.
+    *   `url` (type: `str`): The URI of the Neo4j database to use as the internal storage, e.g. `bolt://localhost:7687`.
     *   `user` (type: `str`): Username for the Neo4j database.
     *   `password` (type: `str`): Password for the Neo4j database.
     *   `db` (type: `str`, optional): The name of the Neo4j database to use as the internal storage, e.g. `neo4j`.
diff --git a/python/cocoindex/lib.py b/python/cocoindex/lib.py
index 832ccb77d..61bc221be 100644
--- a/python/cocoindex/lib.py
+++ b/python/cocoindex/lib.py
@@ -24,7 +24,7 @@ def _load_field(target: dict[str, str], name: str, env_name: str, required: bool
 
 @dataclass
 class DatabaseConnectionSpec:
-    uri: str
+    url: str
     user: str | None = None
     password: str | None = None
 
@@ -38,7 +38,7 @@ def from_env(cls) -> Self:
         """Load settings from environment variables."""
 
         db_kwargs: dict[str, str] = dict()
-        _load_field(db_kwargs, "uri", "COCOINDEX_DATABASE_URL", required=True)
+        _load_field(db_kwargs, "url", "COCOINDEX_DATABASE_URL", required=True)
         _load_field(db_kwargs, "user", "COCOINDEX_DATABASE_USER")
         _load_field(db_kwargs, "password", "COCOINDEX_DATABASE_PASSWORD")
         database = DatabaseConnectionSpec(**db_kwargs)
diff --git a/src/lib_context.rs b/src/lib_context.rs
index 76a56a6a0..4f3ca4040 100644
--- a/src/lib_context.rs
+++ b/src/lib_context.rs
@@ -70,13 +70,13 @@ pub struct DbPools {
 impl DbPools {
     pub async fn get_pool(&self, conn_spec: &settings::DatabaseConnectionSpec) -> Result<PgPool> {
         let db_pool_cell = {
-            let key = (conn_spec.uri.clone(), conn_spec.user.clone());
+            let key = (conn_spec.url.clone(), conn_spec.user.clone());
             let mut db_pools = self.pools.lock().unwrap();
             db_pools.entry(key).or_default().clone()
         };
         let pool = db_pool_cell
             .get_or_try_init(|| async move {
-                let mut pg_options: PgConnectOptions = conn_spec.uri.parse()?;
+                let mut pg_options: PgConnectOptions = conn_spec.url.parse()?;
                 if let Some(user) = &conn_spec.user {
                     pg_options = pg_options.username(user);
                 }
diff --git a/src/settings.rs b/src/settings.rs
index 33cd90c25..2cbcf1460 100644
--- a/src/settings.rs
+++ b/src/settings.rs
@@ -2,7 +2,7 @@ use serde::Deserialize;
 
 #[derive(Deserialize, Debug)]
 pub struct DatabaseConnectionSpec {
-    pub uri: String,
+    pub url: String,
     pub user: Option<String>,
     pub password: Option<String>,
 }