diff --git a/router/middleware.go b/router/middleware.go
index 64c8626..758f5fc 100644
--- a/router/middleware.go
+++ b/router/middleware.go
@@ -73,7 +73,7 @@ func (h *Handlers) IsAdminUserMiddleware(next echo.HandlerFunc) echo.HandlerFunc
 }
 
 func (h *Handlers) getRequestUserIDFromCookie(c echo.Context) (uuid.UUID, error) {
-	sess, err := session.Get("emoine_session", c)
+	sess, err := session.Get("emoine_session_v2", c)
 	if err != nil {
 		return uuid.Nil, err
 	}
diff --git a/router/oauth2.go b/router/oauth2.go
index dbae266..3cdc116 100644
--- a/router/oauth2.go
+++ b/router/oauth2.go
@@ -17,7 +17,7 @@ import (
 
 // GetGeneratedCode GET /oauth2/generate/code
 func (h *Handlers) GetGeneratedCode(c echo.Context) error {
-	sess, err := session.Get("emoine_session", c)
+	sess, err := session.Get("emoine_session_v2", c)
 	if err != nil {
 		log.Printf("error: %v", err)
 		return echo.ErrInternalServerError
@@ -44,7 +44,7 @@ func (h *Handlers) GetGeneratedCode(c echo.Context) error {
 
 // CallbackHandler GET /api/callback
 func (h *Handlers) CallbackHandler(c echo.Context) error {
-	sess, err := session.Get("emoine_session", c)
+	sess, err := session.Get("emoine_session_v2", c)
 	if err != nil {
 		log.Printf("error: %v", err)
 		return echo.ErrInternalServerError