diff --git a/blogprjs/01-beanpostprocessor-injectrandomvar/pom.xml b/blogprjs/01-beanpostprocessor-injectrandomvar/pom.xml
index 087e566..ceed351 100644
--- a/blogprjs/01-beanpostprocessor-injectrandomvar/pom.xml
+++ b/blogprjs/01-beanpostprocessor-injectrandomvar/pom.xml
@@ -18,7 +18,7 @@
 
         <spring.version>4.3.12.RELEASE</spring.version>
         <slf4j.version>1.7.22</slf4j.version>
-        <logback.version>1.1.9</logback.version>
+        <logback.version>1.2.0</logback.version>
     </properties>
 
     <repositories>