Bumped up to mina 2.1.6
diff --git a/pom.xml b/pom.xml
index 8f492eb..67bb106 100644
--- a/pom.xml
+++ b/pom.xml
@@ -168,7 +168,7 @@
     <log4j.version>2.17.0</log4j.version>
     <maven.compile.source>1.8</maven.compile.source>
     <maven.compile.target>1.8</maven.compile.target>
-    <mina.core.version>2.1.2</mina.core.version>
+    <mina.core.version>2.1.6</mina.core.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <slf4j.api.version>1.7.32</slf4j.api.version>
     <slf4j.log4j12.version>1.7.32</slf4j.log4j12.version>