diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 1cf6764..4908b04
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
     <properties>
         <java.version>11</java.version>
         <sila.version>0.10.0</sila.version>
-        <logback.version>1.2.9</logback.version>
+        <logback.version>1.2.13</logback.version>
         <fasterxml.version>2.14.1</fasterxml.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
         <maven.compiler.target>${java.version}</maven.compiler.target>