diff --git a/kicc-common/kicc-common-security/src/main/java/com/cloud/kicc/common/security/grant/provider/KiccDaoAuthenticationProvider.java b/kicc-common/kicc-common-security/src/main/java/com/cloud/kicc/common/security/grant/provider/KiccDaoAuthenticationProvider.java
index 07affaee..1d72cbc0 100644
--- a/kicc-common/kicc-common-security/src/main/java/com/cloud/kicc/common/security/grant/provider/KiccDaoAuthenticationProvider.java
+++ b/kicc-common/kicc-common-security/src/main/java/com/cloud/kicc/common/security/grant/provider/KiccDaoAuthenticationProvider.java
@@ -18,7 +18,6 @@ import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.security.core.userdetails.UsernameNotFoundException;
 import org.springframework.security.crypto.factory.PasswordEncoderFactories;
 import org.springframework.security.crypto.password.PasswordEncoder;
-import org.springframework.security.oauth2.common.exceptions.OAuth2Exception;
 import org.springframework.util.Assert;
 
 import java.util.Comparator;