diff --git a/config/src/main/java/org/springframework/security/config/annotation/method/configuration/GlobalMethodSecurityConfiguration.java b/config/src/main/java/org/springframework/security/config/annotation/method/configuration/GlobalMethodSecurityConfiguration.java
index fbb7cecd28..9e3d7e0c34 100644
--- a/config/src/main/java/org/springframework/security/config/annotation/method/configuration/GlobalMethodSecurityConfiguration.java
+++ b/config/src/main/java/org/springframework/security/config/annotation/method/configuration/GlobalMethodSecurityConfiguration.java
@@ -64,7 +64,6 @@ import org.springframework.security.access.vote.RoleVoter;
 import org.springframework.security.authentication.AuthenticationManager;
 import org.springframework.security.authentication.AuthenticationTrustResolver;
 import org.springframework.security.authentication.DefaultAuthenticationEventPublisher;
-import org.springframework.security.config.PostProcessedMockUserDetailsService;
 import org.springframework.security.config.annotation.ObjectPostProcessor;
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
 import org.springframework.util.Assert;