Use SPDX identifier for License (#209)

diff --git a/pom.xml b/pom.xml
index bf5a0da..74900a5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -72,7 +72,7 @@
     <inceptionYear>2004</inceptionYear>
     <licenses>
         <license>
-            <name>Apache License, Version 2.0</name>
+            <name>Apache-2.0</name>
             <url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
             <distribution>repo</distribution>
         </license>