diff --git a/pom.xml b/pom.xml
index 1f51f28862..948843cf4c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-parent</artifactId>
-    <version>90</version>
+    <version>91</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <artifactId>commons-collections4</artifactId>