diff --git a/yoda-architects/session-01/README.md b/yoda-architects/session-01/README.md
index 06edaeb..df60254 100644
--- a/yoda-architects/session-01/README.md
+++ b/yoda-architects/session-01/README.md
@@ -9,7 +9,7 @@
 - [`DefaultListableBeanFactory.java` – Spring](https://github.com/spring-projects/spring-framework/blob/main/spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java#L1025)
 - [`BeanDefinitionParserDelegate.java` – Spring](https://github.com/spring-projects/spring-framework/blob/main/spring-beans/src/main/java/org/springframework/beans/factory/xml/BeanDefinitionParserDelegate.java#L550)
 - [`UsernamePasswordAuthenticationFilter.java` – Spring Security](https://github.com/spring-projects/spring-security/blob/main/web/src/main/java/org/springframework/security/web/authentication/UsernamePasswordAuthenticationFilter.java#L150)
-- [`DefaultAuthenticationEventPublisher.java` – Spring Security]()
+- [`DefaultAuthenticationEventPublisher.java` – Spring Security](https://github.com/spring-projects/spring-security/blob/main/core/src/main/java/org/springframework/security/authentication/DefaultAuthenticationEventPublisher.java)
 
 ### Instructions