diff --git a/pom.xml b/pom.xml
index 28f7f5c..2456ccb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -102,7 +102,7 @@
   </parent>
 
   <properties>
-    <clojure.version>1.5.1</clojure.version>
+    <clojure.version>1.9.0</clojure.version>
   </properties>