[MPOM-207] upgrade maven-compiler-plugin to version 3.8.1
diff --git a/pom.xml b/pom.xml
index 18c8ba3..7a0994c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -127,7 +127,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.7.0</version>
+          <version>3.8.1</version>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>