diff --git a/examples/elastic-example/pom.xml b/examples/elastic-example/pom.xml
index 4783bf7..649d784 100644
--- a/examples/elastic-example/pom.xml
+++ b/examples/elastic-example/pom.xml
@@ -21,7 +21,7 @@
         <logstash-logback-encoder.version>5.2</logstash-logback-encoder.version>
         <commons-io.version>2.6</commons-io.version>
         <slf4j.version>1.7.25</slf4j.version>
-        <logback.version>1.2.3</logback.version>
+        <logback.version>1.5.13</logback.version>
         <json.version>20180130</json.version>
     </properties>