diff --git a/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/AuthzeroTokenResolverAutoConfiguration.java b/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/AuthzeroTokenResolverAutoConfiguration.java
index f08ef03..9e70b47 100644
--- a/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/AuthzeroTokenResolverAutoConfiguration.java
+++ b/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/AuthzeroTokenResolverAutoConfiguration.java
@@ -25,11 +25,13 @@ import com.auth0.jwt.interfaces.DecodedJWT;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.DependsOn;
 
 /**
  * <p>
@@ -61,6 +63,8 @@ import org.springframework.context.annotation.Bean;
 @EnableConfigurationProperties(value = {SimpleJwtProperties.class})
 @ConditionalOnClass({DecodedJWT.class, AuthzeroTokenResolver.class})
 @ConditionalOnMissingBean({TokenResolver.class})
+@ConditionalOnBean(value = {GuidCreator.class}, name = "jtiCreator")
+@AutoConfigureAfter(value = GuidAutoConfiguration.class)
 public class AuthzeroTokenResolverAutoConfiguration {
 
     /**
@@ -96,8 +100,8 @@ public class AuthzeroTokenResolverAutoConfiguration {
      * @return the {@link TokenResolver} instance
      */
     @Bean
-    @ConditionalOnBean(value = {GuidCreator.class}, name = "jtiCreator")
     public TokenResolver<DecodedJWT> tokenResolver() {
+        log.debug("Creating bean TokenResolver<DecodedJWT>.");
         return new AuthzeroTokenResolver(
                 jtiCreator,
                 simpleJwtProperties.algorithm(),
diff --git a/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/GuidAutoConfiguration.java b/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/GuidAutoConfiguration.java
index ffad4fb..ad005ae 100644
--- a/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/GuidAutoConfiguration.java
+++ b/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/GuidAutoConfiguration.java
@@ -18,10 +18,13 @@
 package cn.org.codecrafters.simplejwt.autoconfiguration;
 
 import cn.org.codecrafters.guid.GuidCreator;
+import cn.org.codecrafters.simplejwt.autoconfiguration.conditions.GuidCreatorCondition;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.boot.autoconfigure.AutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.condition.SearchStrategy;
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Conditional;
 
 import java.util.UUID;
 
@@ -32,11 +35,12 @@ import java.util.UUID;
  */
 @Slf4j
 @AutoConfiguration
-@ConditionalOnMissingBean(value = GuidCreator.class, name = "jtiCreator")
 public class GuidAutoConfiguration {
 
     @Bean
+    @Conditional(GuidCreatorCondition.class)
     public GuidCreator<?> jtiCreator() {
+        log.debug("[GuidAutoConfiguration] --- Initializing default jtiCreator.");
         return UUID::randomUUID;
     }
 
diff --git a/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/JjwtTokenResolverAutoConfiguration.java b/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/JjwtTokenResolverAutoConfiguration.java
index f0fbd12..b822474 100644
--- a/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/JjwtTokenResolverAutoConfiguration.java
+++ b/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/JjwtTokenResolverAutoConfiguration.java
@@ -27,6 +27,7 @@ import io.jsonwebtoken.Jws;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
@@ -63,6 +64,8 @@ import org.springframework.context.annotation.Bean;
 @EnableConfigurationProperties(value = {SimpleJwtProperties.class})
 @ConditionalOnClass({Jws.class, Claims.class, JjwtTokenResolver.class})
 @ConditionalOnMissingBean({TokenResolver.class})
+@ConditionalOnBean(value = {GuidCreator.class}, name = "jtiCreator")
+@AutoConfigureAfter(value = GuidAutoConfiguration.class)
 public class JjwtTokenResolverAutoConfiguration {
 
     /**
@@ -98,7 +101,6 @@ public class JjwtTokenResolverAutoConfiguration {
      * @return the {@link TokenResolver} instance
      */
     @Bean
-    @ConditionalOnBean(value = {GuidCreator.class}, name = "jtiCreator")
     public TokenResolver<Jws<Claims>> tokenResolver() {
         return new JjwtTokenResolver(
                 jtiCreator,
diff --git a/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/conditions/GuidCreatorCondition.java b/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/conditions/GuidCreatorCondition.java
new file mode 100644
index 0000000..486cf08
--- /dev/null
+++ b/simple-jwt-spring-boot-starter/src/main/java/cn/org/codecrafters/simplejwt/autoconfiguration/conditions/GuidCreatorCondition.java
@@ -0,0 +1,34 @@
+package cn.org.codecrafters.simplejwt.autoconfiguration.conditions;
+
+import cn.org.codecrafters.guid.GuidCreator;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.annotation.Condition;
+import org.springframework.context.annotation.ConditionContext;
+import org.springframework.core.type.AnnotatedTypeMetadata;
+
+import java.util.Objects;
+
+/**
+ * GuidCreatorCondition
+ * <p>
+ * Created on 28 Aug 2023
+ *
+ * @author Zihlu Wang
+ */
+@Slf4j
+public class GuidCreatorCondition implements Condition {
+    @Override
+    public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {
+        log.debug("[GuidCreatorCondition] --- Detecting bean jtiCreator.");
+        final var beanFactory = Objects.requireNonNull(context.getBeanFactory());
+        var isContainJtiCreator = beanFactory.containsBean("jtiCreator");
+        log.debug("[GuidCreatorCondition] --- Bean jtiCreator {} been created.", isContainJtiCreator ? "has" : "has not");
+        if (isContainJtiCreator) {
+            var result = !(beanFactory.getBean("jtiCreator") instanceof GuidCreator<?>);
+            log.debug("[GuidCreatorCondition] --- Create jtiCreator now? {}.", result ? "yes" : "no");
+            return result;
+        }
+        log.debug("[GuidCreatorCondition] --- Condition passed.");
+        return true;
+    }
+}