diff --git a/eiam-protocol/eiam-protocol-cas/src/main/java/cn/topiam/employee/protocol/cas/idp/CasIdpConfigurer.java b/eiam-protocol/eiam-protocol-cas/src/main/java/cn/topiam/employee/protocol/cas/idp/CasIdpConfigurer.java
index 605e605b..0016cffb 100644
--- a/eiam-protocol/eiam-protocol-cas/src/main/java/cn/topiam/employee/protocol/cas/idp/CasIdpConfigurer.java
+++ b/eiam-protocol/eiam-protocol-cas/src/main/java/cn/topiam/employee/protocol/cas/idp/CasIdpConfigurer.java
@@ -57,8 +57,7 @@ public class CasIdpConfigurer<B extends HttpSecurityBuilder<B>>
         DocumentBuilder documentBuilder = getDocumentBuilder(http);
         //CAS 登陆过滤器
         http.addFilterAfter(new CasIdpSingleSignOnEndpointFilter(applicationServiceLoader,
-            sessionRegistry, centralAuthenticationService),
-            UsernamePasswordAuthenticationFilter.class);
+            centralAuthenticationService), UsernamePasswordAuthenticationFilter.class);
 
         //cas 验证过滤器
         http.addFilterBefore(
diff --git a/eiam-protocol/eiam-protocol-cas/src/main/java/cn/topiam/employee/protocol/cas/idp/endpoint/CasIdpSingleSignOnEndpointFilter.java b/eiam-protocol/eiam-protocol-cas/src/main/java/cn/topiam/employee/protocol/cas/idp/endpoint/CasIdpSingleSignOnEndpointFilter.java
index 14c72c64..4fa55834 100644
--- a/eiam-protocol/eiam-protocol-cas/src/main/java/cn/topiam/employee/protocol/cas/idp/endpoint/CasIdpSingleSignOnEndpointFilter.java
+++ b/eiam-protocol/eiam-protocol-cas/src/main/java/cn/topiam/employee/protocol/cas/idp/endpoint/CasIdpSingleSignOnEndpointFilter.java
@@ -30,7 +30,6 @@ import org.slf4j.LoggerFactory;
 import org.springframework.boot.web.servlet.filter.OrderedFilter;
 import org.springframework.core.Ordered;
 import org.springframework.http.HttpMethod;
-import org.springframework.security.core.session.SessionRegistry;
 import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
 import org.springframework.security.web.util.matcher.RequestMatcher;
 import org.springframework.util.CollectionUtils;
@@ -76,15 +75,11 @@ public class CasIdpSingleSignOnEndpointFilter extends OncePerRequestFilter
      */
     private final ApplicationServiceLoader     applicationServiceLoader;
 
-    private final SessionRegistry              sessionRegistry;
-
     private final CentralAuthenticationService centralAuthenticationService;
 
     public CasIdpSingleSignOnEndpointFilter(ApplicationServiceLoader applicationServiceLoader,
-                                            SessionRegistry sessionRegistry,
                                             CentralAuthenticationService centralAuthenticationService) {
         this.applicationServiceLoader = applicationServiceLoader;
-        this.sessionRegistry = sessionRegistry;
         this.centralAuthenticationService = centralAuthenticationService;
     }