diff --git a/python/tests/test_ssl_mode.py b/python/tests/test_ssl_mode.py
index ae97900f..99f6b9b6 100644
--- a/python/tests/test_ssl_mode.py
+++ b/python/tests/test_ssl_mode.py
@@ -74,3 +74,25 @@ async def test_ssl_mode_require_pool_builder(
     pool = builder.build()
 
     await pool.execute("SELECT 1")
+
+
+async def test_ssl_mode_require_without_ca_file(
+    postgres_host: str,
+    postgres_user: str,
+    postgres_password: str,
+    postgres_port: int,
+    postgres_dbname: str,
+) -> None:
+    builder = (
+        ConnectionPoolBuilder()
+        .max_pool_size(10)
+        .host(postgres_host)
+        .port(postgres_port)
+        .user(postgres_user)
+        .password(postgres_password)
+        .dbname(postgres_dbname)
+        .ssl_mode(SslMode.Require)
+    )
+    pool = builder.build()
+
+    await pool.execute("SELECT 1")
diff --git a/src/driver/common_options.rs b/src/driver/common_options.rs
index ee58a161..aaf9329a 100644
--- a/src/driver/common_options.rs
+++ b/src/driver/common_options.rs
@@ -64,7 +64,7 @@ impl TargetSessionAttrs {
 }
 
 #[pyclass]
-#[derive(Clone, Copy)]
+#[derive(Clone, Copy, PartialEq)]
 pub enum SslMode {
     /// Do not use TLS.
     Disable,
diff --git a/src/driver/connection_pool.rs b/src/driver/connection_pool.rs
index 5d5de42d..303fffc4 100644
--- a/src/driver/connection_pool.rs
+++ b/src/driver/connection_pool.rs
@@ -1,6 +1,6 @@
 use crate::runtime::tokio_runtime;
 use deadpool_postgres::{Manager, ManagerConfig, Object, Pool, RecyclingMethod};
-use openssl::ssl::{SslConnector, SslMethod};
+use openssl::ssl::{SslConnector, SslMethod, SslVerifyMode};
 use postgres_openssl::MakeTlsConnector;
 use pyo3::{pyclass, pyfunction, pymethods, PyAny};
 use std::{sync::Arc, vec};
@@ -13,7 +13,7 @@ use crate::{
 };
 
 use super::{
-    common_options::{ConnRecyclingMethod, LoadBalanceHosts, SslMode, TargetSessionAttrs},
+    common_options::{self, ConnRecyclingMethod, LoadBalanceHosts, SslMode, TargetSessionAttrs},
     connection::Connection,
     utils::build_connection_config,
 };
@@ -104,6 +104,15 @@ pub fn connect(
         builder.set_ca_file(ca_file)?;
         let tls_connector = MakeTlsConnector::new(builder.build());
         mgr = Manager::from_config(pg_config, tls_connector, mgr_config);
+    } else if let Some(ssl_mode) = ssl_mode {
+        if ssl_mode == common_options::SslMode::Require {
+            let mut builder = SslConnector::builder(SslMethod::tls())?;
+            builder.set_verify(SslVerifyMode::NONE);
+            let tls_connector = MakeTlsConnector::new(builder.build());
+            mgr = Manager::from_config(pg_config, tls_connector, mgr_config);
+        } else {
+            mgr = Manager::from_config(pg_config, NoTls, mgr_config);
+        }
     } else {
         mgr = Manager::from_config(pg_config, NoTls, mgr_config);
     }
diff --git a/src/driver/connection_pool_builder.rs b/src/driver/connection_pool_builder.rs
index edc6dd7e..bb2047b4 100644
--- a/src/driver/connection_pool_builder.rs
+++ b/src/driver/connection_pool_builder.rs
@@ -1,14 +1,14 @@
 use std::{net::IpAddr, time::Duration};
 
 use deadpool_postgres::{Manager, ManagerConfig, Pool, RecyclingMethod};
-use openssl::ssl::{SslConnector, SslMethod};
+use openssl::ssl::{SslConnector, SslMethod, SslVerifyMode};
 use postgres_openssl::MakeTlsConnector;
 use pyo3::{pyclass, pymethods, Py, Python};
 use tokio_postgres::NoTls;
 
 use crate::exceptions::rust_errors::{RustPSQLDriverError, RustPSQLDriverPyResult};
 
-use super::connection_pool::ConnectionPool;
+use super::{common_options, connection_pool::ConnectionPool};
 
 #[pyclass]
 pub struct ConnectionPoolBuilder {
@@ -16,6 +16,7 @@ pub struct ConnectionPoolBuilder {
     max_db_pool_size: Option<usize>,
     conn_recycling_method: Option<RecyclingMethod>,
     ca_file: Option<String>,
+    ssl_mode: Option<common_options::SslMode>,
 }
 
 #[pymethods]
@@ -28,6 +29,7 @@ impl ConnectionPoolBuilder {
             max_db_pool_size: Some(2),
             conn_recycling_method: None,
             ca_file: None,
+            ssl_mode: None,
         }
     }
 
@@ -53,6 +55,15 @@ impl ConnectionPoolBuilder {
             builder.set_ca_file(ca_file)?;
             let tls_connector = MakeTlsConnector::new(builder.build());
             mgr = Manager::from_config(self.config.clone(), tls_connector, mgr_config);
+        } else if let Some(ssl_mode) = self.ssl_mode {
+            if ssl_mode == common_options::SslMode::Require {
+                let mut builder = SslConnector::builder(SslMethod::tls())?;
+                builder.set_verify(SslVerifyMode::NONE);
+                let tls_connector = MakeTlsConnector::new(builder.build());
+                mgr = Manager::from_config(self.config.clone(), tls_connector, mgr_config);
+            } else {
+                mgr = Manager::from_config(self.config.clone(), NoTls, mgr_config);
+            }
         } else {
             mgr = Manager::from_config(self.config.clone(), NoTls, mgr_config);
         }
@@ -167,6 +178,7 @@ impl ConnectionPoolBuilder {
     pub fn ssl_mode(self_: Py<Self>, ssl_mode: crate::driver::common_options::SslMode) -> Py<Self> {
         Python::with_gil(|gil| {
             let mut self_ = self_.borrow_mut(gil);
+            self_.ssl_mode = Some(ssl_mode);
             self_.config.ssl_mode(ssl_mode.to_internal());
         });
         self_