diff --git a/src/authenticator.rs b/src/authenticator.rs
index 95f09e4..ed0ae7b 100644
--- a/src/authenticator.rs
+++ b/src/authenticator.rs
@@ -727,6 +727,10 @@ pub trait HyperClientBuilder {
 
     /// Create a hyper::Client
     fn build_hyper_client(self) -> hyper::Client<Self::Connector>;
+
+    /// Create a `hyper::Client` for tests (HTTPS not required)
+    #[doc(hidden)]
+    fn build_test_hyper_client(self) -> hyper::Client<Self::Connector>;
 }
 
 #[cfg(feature = "hyper-rustls")]
@@ -781,6 +785,22 @@ impl HyperClientBuilder for DefaultHyperClient {
             .pool_max_idle_per_host(0)
             .build::<_, hyper::Body>(connector)
     }
+
+    fn build_test_hyper_client(self) -> hyper::Client<Self::Connector> {
+        #[cfg(feature = "hyper-rustls")]
+        let connector = hyper_rustls::HttpsConnectorBuilder::new()
+            .with_native_roots()
+            .https_or_http()
+            .enable_http1()
+            .enable_http2()
+            .build();
+        #[cfg(all(not(feature = "hyper-rustls"), feature = "hyper-tls"))]
+        let connector = hyper_tls::HttpsConnector::new();
+
+        hyper::Client::builder()
+            .pool_max_idle_per_host(0)
+            .build::<_, hyper::Body>(connector)
+    }
 }
 
 impl<C> HyperClientBuilder for hyper::Client<C>
@@ -792,6 +812,10 @@ where
     fn build_hyper_client(self) -> hyper::Client<C> {
         self
     }
+
+    fn build_test_hyper_client(self) -> hyper::Client<Self::Connector> {
+        self
+    }
 }
 
 /// How should the acquired tokens be stored?
diff --git a/tests/tests.rs b/tests/tests.rs
index 13b97a3..33e8f61 100644
--- a/tests/tests.rs
+++ b/tests/tests.rs
@@ -216,7 +216,7 @@ async fn create_installed_flow_auth(
     }
 
     let mut builder = InstalledFlowAuthenticator::builder(app_secret, method)
-        .flow_delegate(Box::new(FD(DefaultHyperClient.build_hyper_client())));
+        .flow_delegate(Box::new(FD(DefaultHyperClient.build_test_hyper_client())));
 
     builder = if let Some(filename) = filename {
         builder.persist_tokens_to_disk(filename)