security issue: commons-collections

Change-Id: I74a56640065ae6c6a470835ab1022ed0f266fc09
Issue-ID: APPC-665
Signed-off-by: Taka Cho <tc012c@att.com>
diff --git a/appc-directed-graph/dg-loader/pom.xml b/appc-directed-graph/dg-loader/pom.xml
index 9ad7c76..26c459e 100644
--- a/appc-directed-graph/dg-loader/pom.xml
+++ b/appc-directed-graph/dg-loader/pom.xml
@@ -46,7 +46,7 @@
         <java.version.source>1.8</java.version.source>
         <java.version.target>1.8</java.version.target>
         <logback.version>1.2.3</logback.version>
-        <common.collections.version>3.2.1</common.collections.version>
+        <commons.collections.version>3.2.2</commons.collections.version>
         <common.io.version>2.5</common.io.version>
         <jettison.version>1.3.7</jettison.version>
         <licenseDir>${project.parent.parent.basedir}</licenseDir>