diff --git a/internal/application/cpdaily/login/cas.go b/internal/application/cpdaily/login/cas.go
index 6f4f038..ae98b7b 100644
--- a/internal/application/cpdaily/login/cas.go
+++ b/internal/application/cpdaily/login/cas.go
@@ -351,7 +351,7 @@ func handleCasLoginSuccess(ctx context.Context, response *resty.Response, school
 	jumpUrl, err := response.RawResponse.Location()
 	utils.OkOrPanic(err)
 
-	client = client.SetRedirectPolicy(resty.FlexibleRedirectPolicy(20))
+	client.SetRedirectPolicy(resty.FlexibleRedirectPolicy(20))
 
 	verifyResponse, err := client.R().
 		WithContext(ctx).
@@ -416,7 +416,7 @@ func submitCasKickOut(ctx context.Context, requestUrl string, doc *goquery.Docum
 		submitForm[name] = value
 	}
 
-	client = client.SetRedirectPolicy(resty.NoRedirectPolicy())
+	client.SetRedirectPolicy(resty.NoRedirectPolicy())
 
 	response, err := client.R().
 		SetFormData(submitForm).
diff --git a/internal/application/cpdaily/login/common.go b/internal/application/cpdaily/login/common.go
index 2920e6f..cef3603 100644
--- a/internal/application/cpdaily/login/common.go
+++ b/internal/application/cpdaily/login/common.go
@@ -14,7 +14,7 @@ import (
 )
 
 func ActivateSession(ctx context.Context, host string, client *resty.Client) {
-	client = client.SetRedirectPolicy(resty.FlexibleRedirectPolicy(20))
+	client.SetRedirectPolicy(resty.FlexibleRedirectPolicy(20))
 
 	host = strings.TrimSuffix(host, "/")
 
@@ -78,13 +78,13 @@ func ActivateSession(ctx context.Context, host string, client *resty.Client) {
 	activateStep1()
 	activateStep2()
 
-	client = client.SetRedirectPolicy(resty.NoRedirectPolicy())
+	client.SetRedirectPolicy(resty.NoRedirectPolicy())
 }
 
 func CookieEnabled(ctx context.Context, host string, client *resty.Client) bool {
-	client = client.SetRedirectPolicy(resty.FlexibleRedirectPolicy(20))
+	client.SetRedirectPolicy(resty.FlexibleRedirectPolicy(20))
 	defer func() {
-		client = client.SetRedirectPolicy(resty.NoRedirectPolicy())
+		client.SetRedirectPolicy(resty.NoRedirectPolicy())
 	}()
 	host = strings.TrimSuffix(host, "/")
 	sessionResponse, err := client.R().