diff --git a/pom.xml b/pom.xml
index 948b09e..454a262 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
         <jackson-core.ver>2.9.7</jackson-core.ver>
         <jackson-datatype-jsr310.ver>2.9.7</jackson-datatype-jsr310.ver>
         <jackson-databind.ver>2.9.10.3</jackson-databind.ver>
-        <logback-core.ver>1.2.3</logback-core.ver>
+        <logback-core.ver>1.2.9</logback-core.ver>
     </properties>
 
     <dependencies>