diff --git a/src/main/kotlin/com/example/v1oauthauthorizationservice/infrastructure/configuration/security/SecurityConfiguration.kt b/src/main/kotlin/com/example/v1oauthauthorizationservice/infrastructure/configuration/security/SecurityConfiguration.kt
index e609773..4922033 100644
--- a/src/main/kotlin/com/example/v1oauthauthorizationservice/infrastructure/configuration/security/SecurityConfiguration.kt
+++ b/src/main/kotlin/com/example/v1oauthauthorizationservice/infrastructure/configuration/security/SecurityConfiguration.kt
@@ -51,7 +51,7 @@ class SecurityConfiguration(
                     .requestMatchers(HttpMethod.POST, "/oauth2/token").permitAll()
                     .requestMatchers(HttpMethod.GET, "/jwk").permitAll()
                     .requestMatchers(HttpMethod.GET, "/oauth2/authorize").authenticated()
-                    .requestMatchers(HttpMethod.GET, "/oauth2/userinfo").permitAll()
+                    .requestMatchers(HttpMethod.GET, "/oauth2/userinfo").authenticated()
                     .requestMatchers(HttpMethod.POST, "/oauth2/user").permitAll()
                     .requestMatchers(HttpMethod.POST, "/oauth2/user/login").permitAll()
                     .requestMatchers(HttpMethod.POST, "/oauth2/user/reissue").authenticated()