diff --git a/src/main/java/io/jboot/components/http/okhttp/OKHttpImpl.java b/src/main/java/io/jboot/components/http/okhttp/OKHttpImpl.java
index 9ad5bf617cf6d7c5766c539d26302029c230ae9e..b1a777dd53e679d21ed64de43152b767cb0addb0 100644
--- a/src/main/java/io/jboot/components/http/okhttp/OKHttpImpl.java
+++ b/src/main/java/io/jboot/components/http/okhttp/OKHttpImpl.java
@@ -26,6 +26,7 @@ import java.security.KeyStore;
 import java.security.SecureRandom;
 import java.security.cert.X509Certificate;
 import java.util.Map;
+import java.util.concurrent.TimeUnit;
 
 /**
  * @author Michael Yang 杨福海 （fuhai999@gmail.com）