diff --git a/internal/outpost/proxyv2/application/auth_basic.go b/internal/outpost/proxyv2/application/auth_basic.go
index 0381559ae..7dd519170 100644
--- a/internal/outpost/proxyv2/application/auth_basic.go
+++ b/internal/outpost/proxyv2/application/auth_basic.go
@@ -36,7 +36,7 @@ func (a *Application) attemptBasicAuth(username, password string) *Claims {
 		return nil
 	}
 	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-	res, err := a.httpClient.Do(req)
+	res, err := a.publicHostHTTPClient.Do(req)
 	if err != nil || res.StatusCode > 200 {
 		b, err := io.ReadAll(res.Body)
 		if err != nil {
diff --git a/internal/outpost/proxyv2/application/auth_bearer.go b/internal/outpost/proxyv2/application/auth_bearer.go
index 852488752..95f4c12cb 100644
--- a/internal/outpost/proxyv2/application/auth_bearer.go
+++ b/internal/outpost/proxyv2/application/auth_bearer.go
@@ -39,7 +39,7 @@ func (a *Application) attemptBearerAuth(token string) *TokenIntrospectionRespons
 		return nil
 	}
 	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-	res, err := a.httpClient.Do(req)
+	res, err := a.publicHostHTTPClient.Do(req)
 	if err != nil || res.StatusCode > 200 {
 		a.log.WithError(err).Warning("failed to send introspection request")
 		return nil