diff --git a/src/main/java/com/hiczp/bilibili/api/BilibiliAPI.java b/src/main/java/com/hiczp/bilibili/api/BilibiliAPI.java
index aba6cb0..dd8e8a7 100644
--- a/src/main/java/com/hiczp/bilibili/api/BilibiliAPI.java
+++ b/src/main/java/com/hiczp/bilibili/api/BilibiliAPI.java
@@ -25,7 +25,6 @@ import java.time.Instant;
 import java.util.Collections;
 import java.util.Date;
 import java.util.List;
-import java.util.Objects;
 
 public class BilibiliAPI implements BilibiliServiceProvider, LiveClientProvider {
     private static final Logger LOGGER = LoggerFactory.getLogger(BilibiliAPI.class);
@@ -71,9 +70,6 @@ public class BilibiliAPI implements BilibiliServiceProvider, LiveClientProvider
     }
 
     public PassportService getPassportService(@Nonnull List<Interceptor> interceptors, @Nonnull HttpLoggingInterceptor.Level logLevel) {
-        Objects.requireNonNull(interceptors);
-        Objects.requireNonNull(logLevel);
-
         OkHttpClient.Builder okHttpClientBuilder = new OkHttpClient.Builder();
 
         interceptors.forEach(okHttpClientBuilder::addInterceptor);
@@ -109,9 +105,6 @@ public class BilibiliAPI implements BilibiliServiceProvider, LiveClientProvider
     }
 
     public LiveService getLiveService(@Nonnull List<Interceptor> interceptors, @Nonnull HttpLoggingInterceptor.Level logLevel) {
-        Objects.requireNonNull(interceptors);
-        Objects.requireNonNull(logLevel);
-
         OkHttpClient.Builder okHttpClientBuilder = new OkHttpClient.Builder();
 
         interceptors.forEach(okHttpClientBuilder::addInterceptor);
diff --git a/src/main/java/com/hiczp/bilibili/api/BilibiliClientProperties.java b/src/main/java/com/hiczp/bilibili/api/BilibiliClientProperties.java
index bee2974..981dbab 100644
--- a/src/main/java/com/hiczp/bilibili/api/BilibiliClientProperties.java
+++ b/src/main/java/com/hiczp/bilibili/api/BilibiliClientProperties.java
@@ -1,6 +1,6 @@
 package com.hiczp.bilibili.api;
 
-import java.util.Objects;
+import javax.annotation.Nonnull;
 
 public class BilibiliClientProperties {
     private String appKey = "1d8b6e7d45233436";
@@ -63,8 +63,7 @@ public class BilibiliClientProperties {
         return version;
     }
 
-    public BilibiliClientProperties setVersion(String version) {
-        Objects.requireNonNull(version);
+    public BilibiliClientProperties setVersion(@Nonnull String version) {
         this.version = version;
         generateBuildProperty();
         return this;