diff --git a/exemplos/02-1-seguranca-jwt/pom.xml b/exemplos/02-1-seguranca-jwt/pom.xml
index 116de29..3c95404 100644
--- a/exemplos/02-1-seguranca-jwt/pom.xml
+++ b/exemplos/02-1-seguranca-jwt/pom.xml
@@ -53,7 +53,7 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>42.2.8</version>
+            <version>42.4.1</version>
         </dependency>
 
         <!-- JJWT Lib (https://github.com/jwtk/jjwt)-->